/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:19:42,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:19:42,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:19:42,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 09:19:42,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:19:42,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:19:42,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:19:42,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:19:42,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:19:42,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:19:42,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:19:42,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:19:42,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:19:42,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:19:42,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:19:42,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:19:42,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 09:19:42,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:19:42,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:19:42,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:19:42,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 09:19:42,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:19:42,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:19:42,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:19:42,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:19:42,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:19:42,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:19:42,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:19:42,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:19:42,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:19:42,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:19:42,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:19:42,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:19:42,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:19:42,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:19:42,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:19:42,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:19:42,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:19:42,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:19:42,647 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:19:42,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:19:42,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:19:42,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:19:42,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:19:42,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:19:42,846 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:19:42,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-01-18 09:19:42,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126d93e22/885608eb6bce42fd9e0ad01ff282beee/FLAG91bd80938 [2022-01-18 09:19:43,470 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:19:43,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-01-18 09:19:43,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126d93e22/885608eb6bce42fd9e0ad01ff282beee/FLAG91bd80938 [2022-01-18 09:19:43,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126d93e22/885608eb6bce42fd9e0ad01ff282beee [2022-01-18 09:19:43,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:19:43,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:19:43,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:19:43,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:19:43,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:19:43,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:19:43" (1/1) ... [2022-01-18 09:19:43,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e939130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:43, skipping insertion in model container [2022-01-18 09:19:43,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:19:43" (1/1) ... [2022-01-18 09:19:43,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:19:44,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:19:44,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2022-01-18 09:19:44,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:19:44,468 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:19:44,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2022-01-18 09:19:44,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:19:44,578 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:19:44,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44 WrapperNode [2022-01-18 09:19:44,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:19:44,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:19:44,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:19:44,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:19:44,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,627 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-01-18 09:19:44,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:19:44,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:19:44,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:19:44,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:19:44,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:19:44,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:19:44,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:19:44,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:19:44,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (1/1) ... [2022-01-18 09:19:44,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:19:44,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:19:44,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 09:19:44,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 09:19:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:19:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 09:19:44,712 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:19:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-18 09:19:44,713 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:19:44,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:19:44,714 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 09:19:44,889 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:19:44,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:19:45,076 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:19:45,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:19:45,082 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 09:19:45,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:19:45 BoogieIcfgContainer [2022-01-18 09:19:45,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:19:45,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:19:45,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:19:45,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:19:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:19:43" (1/3) ... [2022-01-18 09:19:45,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fa2999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:19:45, skipping insertion in model container [2022-01-18 09:19:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:19:44" (2/3) ... [2022-01-18 09:19:45,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fa2999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:19:45, skipping insertion in model container [2022-01-18 09:19:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:19:45" (3/3) ... [2022-01-18 09:19:45,089 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-01-18 09:19:45,093 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:19:45,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:19:45,093 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-18 09:19:45,093 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,121 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,122 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,123 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,124 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,125 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,126 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,126 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,126 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,126 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,126 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,126 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,127 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,128 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,128 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,128 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,128 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,128 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,128 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,129 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,130 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,131 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,132 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,133 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,134 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,135 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,135 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,140 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,141 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,141 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,141 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,141 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,142 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,142 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,143 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,144 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,144 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,144 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,144 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,144 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,146 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,146 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,146 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,147 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,153 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,154 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,154 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,154 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,156 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,159 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,160 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,160 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,160 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,161 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:19:45,170 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 09:19:45,200 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:19:45,208 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 09:19:45,209 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-18 09:19:45,217 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 193 places, 195 transitions, 406 flow [2022-01-18 09:19:45,519 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11323 states, 11313 states have (on average 2.854061698930434) internal successors, (32288), 11322 states have internal predecessors, (32288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:45,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 11323 states, 11313 states have (on average 2.854061698930434) internal successors, (32288), 11322 states have internal predecessors, (32288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:45,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-18 09:19:45,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:45,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:45,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:45,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-01-18 09:19:45,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:45,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419337747] [2022-01-18 09:19:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:45,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:45,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:45,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:45,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419337747] [2022-01-18 09:19:45,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419337747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:45,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:45,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:19:45,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094423684] [2022-01-18 09:19:45,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:45,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:19:45,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:45,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:19:46,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:19:46,022 INFO L87 Difference]: Start difference. First operand has 11323 states, 11313 states have (on average 2.854061698930434) internal successors, (32288), 11322 states have internal predecessors, (32288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:46,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:46,290 INFO L93 Difference]: Finished difference Result 10869 states and 30539 transitions. [2022-01-18 09:19:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:19:46,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-18 09:19:46,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:46,354 INFO L225 Difference]: With dead ends: 10869 [2022-01-18 09:19:46,354 INFO L226 Difference]: Without dead ends: 8837 [2022-01-18 09:19:46,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:19:46,357 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 176 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:46,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 667 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:19:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8837 states. [2022-01-18 09:19:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8837 to 8834. [2022-01-18 09:19:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8834 states, 8827 states have (on average 2.8009516256938936) internal successors, (24724), 8833 states have internal predecessors, (24724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8834 states to 8834 states and 24724 transitions. [2022-01-18 09:19:46,634 INFO L78 Accepts]: Start accepts. Automaton has 8834 states and 24724 transitions. Word has length 45 [2022-01-18 09:19:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:46,636 INFO L470 AbstractCegarLoop]: Abstraction has 8834 states and 24724 transitions. [2022-01-18 09:19:46,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 8834 states and 24724 transitions. [2022-01-18 09:19:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 09:19:46,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:46,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:46,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:19:46,639 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-01-18 09:19:46,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:46,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115235560] [2022-01-18 09:19:46,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:46,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:46,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:46,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115235560] [2022-01-18 09:19:46,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115235560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:46,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:46,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:19:46,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179031628] [2022-01-18 09:19:46,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:46,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:19:46,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:46,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:19:46,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:19:46,776 INFO L87 Difference]: Start difference. First operand 8834 states and 24724 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:46,950 INFO L93 Difference]: Finished difference Result 8839 states and 24729 transitions. [2022-01-18 09:19:46,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:19:46,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-18 09:19:46,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:46,987 INFO L225 Difference]: With dead ends: 8839 [2022-01-18 09:19:46,987 INFO L226 Difference]: Without dead ends: 8839 [2022-01-18 09:19:46,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:19:46,988 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 264 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:46,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 593 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:19:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8839 states. [2022-01-18 09:19:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8839 to 8832. [2022-01-18 09:19:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8832 states, 8826 states have (on average 2.8010423748017224) internal successors, (24722), 8831 states have internal predecessors, (24722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8832 states to 8832 states and 24722 transitions. [2022-01-18 09:19:47,288 INFO L78 Accepts]: Start accepts. Automaton has 8832 states and 24722 transitions. Word has length 53 [2022-01-18 09:19:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:47,288 INFO L470 AbstractCegarLoop]: Abstraction has 8832 states and 24722 transitions. [2022-01-18 09:19:47,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:47,289 INFO L276 IsEmpty]: Start isEmpty. Operand 8832 states and 24722 transitions. [2022-01-18 09:19:47,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:19:47,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:47,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:47,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:19:47,291 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:47,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:47,292 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-01-18 09:19:47,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:47,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127487583] [2022-01-18 09:19:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:47,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:47,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:47,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:47,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127487583] [2022-01-18 09:19:47,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127487583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:47,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:47,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:19:47,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068645719] [2022-01-18 09:19:47,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:47,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:19:47,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:47,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:19:47,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:19:47,451 INFO L87 Difference]: Start difference. First operand 8832 states and 24722 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:47,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:47,687 INFO L93 Difference]: Finished difference Result 13049 states and 36406 transitions. [2022-01-18 09:19:47,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 09:19:47,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-18 09:19:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:47,727 INFO L225 Difference]: With dead ends: 13049 [2022-01-18 09:19:47,727 INFO L226 Difference]: Without dead ends: 13049 [2022-01-18 09:19:47,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:19:47,732 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 437 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:47,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 918 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:19:47,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13049 states. [2022-01-18 09:19:47,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13049 to 9829. [2022-01-18 09:19:47,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9829 states, 9824 states have (on average 2.799979641693811) internal successors, (27507), 9828 states have internal predecessors, (27507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:47,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9829 states to 9829 states and 27507 transitions. [2022-01-18 09:19:47,972 INFO L78 Accepts]: Start accepts. Automaton has 9829 states and 27507 transitions. Word has length 76 [2022-01-18 09:19:47,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:47,972 INFO L470 AbstractCegarLoop]: Abstraction has 9829 states and 27507 transitions. [2022-01-18 09:19:47,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:47,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9829 states and 27507 transitions. [2022-01-18 09:19:47,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-18 09:19:47,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:47,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:47,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:19:47,976 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:47,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:47,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-01-18 09:19:47,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:47,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906536936] [2022-01-18 09:19:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:47,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:48,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:48,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906536936] [2022-01-18 09:19:48,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906536936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:48,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:48,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:19:48,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888662244] [2022-01-18 09:19:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:48,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:19:48,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:48,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:19:48,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:19:48,048 INFO L87 Difference]: Start difference. First operand 9829 states and 27507 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:48,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:48,262 INFO L93 Difference]: Finished difference Result 13885 states and 38577 transitions. [2022-01-18 09:19:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:19:48,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-18 09:19:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:48,290 INFO L225 Difference]: With dead ends: 13885 [2022-01-18 09:19:48,291 INFO L226 Difference]: Without dead ends: 11603 [2022-01-18 09:19:48,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-18 09:19:48,292 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 342 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:48,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 930 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:19:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11603 states. [2022-01-18 09:19:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11603 to 11281. [2022-01-18 09:19:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11281 states, 11277 states have (on average 2.7999467943602023) internal successors, (31575), 11280 states have internal predecessors, (31575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11281 states to 11281 states and 31575 transitions. [2022-01-18 09:19:48,644 INFO L78 Accepts]: Start accepts. Automaton has 11281 states and 31575 transitions. Word has length 84 [2022-01-18 09:19:48,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:48,645 INFO L470 AbstractCegarLoop]: Abstraction has 11281 states and 31575 transitions. [2022-01-18 09:19:48,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 11281 states and 31575 transitions. [2022-01-18 09:19:48,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 09:19:48,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:48,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:48,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 09:19:48,657 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:48,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:48,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1165459750, now seen corresponding path program 1 times [2022-01-18 09:19:48,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:48,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631591685] [2022-01-18 09:19:48,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:48,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:48,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:48,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631591685] [2022-01-18 09:19:48,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631591685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:48,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:48,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 09:19:48,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543747087] [2022-01-18 09:19:48,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:48,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 09:19:48,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:48,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 09:19:48,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 09:19:48,752 INFO L87 Difference]: Start difference. First operand 11281 states and 31575 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:48,844 INFO L93 Difference]: Finished difference Result 3851 states and 10500 transitions. [2022-01-18 09:19:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 09:19:48,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-18 09:19:48,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:48,851 INFO L225 Difference]: With dead ends: 3851 [2022-01-18 09:19:48,851 INFO L226 Difference]: Without dead ends: 3851 [2022-01-18 09:19:48,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:19:48,852 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 187 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:48,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 648 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:19:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2022-01-18 09:19:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3851. [2022-01-18 09:19:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3849 states have (on average 2.7279812938425567) internal successors, (10500), 3850 states have internal predecessors, (10500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 10500 transitions. [2022-01-18 09:19:48,916 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 10500 transitions. Word has length 96 [2022-01-18 09:19:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:48,917 INFO L470 AbstractCegarLoop]: Abstraction has 3851 states and 10500 transitions. [2022-01-18 09:19:48,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 10500 transitions. [2022-01-18 09:19:48,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:19:48,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:48,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:48,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 09:19:48,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:48,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:48,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1948450374, now seen corresponding path program 1 times [2022-01-18 09:19:48,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:48,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359587760] [2022-01-18 09:19:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:49,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:49,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359587760] [2022-01-18 09:19:49,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359587760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:49,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:49,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:19:49,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376016535] [2022-01-18 09:19:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:49,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:19:49,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:49,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:19:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:19:49,484 INFO L87 Difference]: Start difference. First operand 3851 states and 10500 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:50,590 INFO L93 Difference]: Finished difference Result 4742 states and 12441 transitions. [2022-01-18 09:19:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:19:50,590 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:19:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:50,603 INFO L225 Difference]: With dead ends: 4742 [2022-01-18 09:19:50,603 INFO L226 Difference]: Without dead ends: 4742 [2022-01-18 09:19:50,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:19:50,605 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1030 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:50,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 2227 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:19:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4742 states. [2022-01-18 09:19:50,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4742 to 4108. [2022-01-18 09:19:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4106 states have (on average 2.6938626400389674) internal successors, (11061), 4107 states have internal predecessors, (11061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 11061 transitions. [2022-01-18 09:19:50,679 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 11061 transitions. Word has length 130 [2022-01-18 09:19:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:50,679 INFO L470 AbstractCegarLoop]: Abstraction has 4108 states and 11061 transitions. [2022-01-18 09:19:50,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:50,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 11061 transitions. [2022-01-18 09:19:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:19:50,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:50,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:50,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 09:19:50,687 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:50,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:50,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1606301884, now seen corresponding path program 2 times [2022-01-18 09:19:50,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:50,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529568620] [2022-01-18 09:19:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:50,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:51,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:51,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529568620] [2022-01-18 09:19:51,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529568620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:51,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:51,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:19:51,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905936765] [2022-01-18 09:19:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:51,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:19:51,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:19:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:19:51,183 INFO L87 Difference]: Start difference. First operand 4108 states and 11061 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:53,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:53,196 INFO L93 Difference]: Finished difference Result 17926 states and 47830 transitions. [2022-01-18 09:19:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:19:53,196 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:19:53,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:53,228 INFO L225 Difference]: With dead ends: 17926 [2022-01-18 09:19:53,228 INFO L226 Difference]: Without dead ends: 17926 [2022-01-18 09:19:53,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:19:53,231 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 2220 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:53,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2220 Valid, 2502 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:19:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17926 states. [2022-01-18 09:19:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17926 to 4470. [2022-01-18 09:19:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4470 states, 4468 states have (on average 2.665398388540734) internal successors, (11909), 4469 states have internal predecessors, (11909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4470 states to 4470 states and 11909 transitions. [2022-01-18 09:19:53,362 INFO L78 Accepts]: Start accepts. Automaton has 4470 states and 11909 transitions. Word has length 130 [2022-01-18 09:19:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:53,362 INFO L470 AbstractCegarLoop]: Abstraction has 4470 states and 11909 transitions. [2022-01-18 09:19:53,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 4470 states and 11909 transitions. [2022-01-18 09:19:53,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:19:53,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:53,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:53,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 09:19:53,372 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:53,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1404133928, now seen corresponding path program 3 times [2022-01-18 09:19:53,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:53,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229998339] [2022-01-18 09:19:53,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:53,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:53,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:53,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:53,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229998339] [2022-01-18 09:19:53,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229998339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:53,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:53,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:19:53,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490763487] [2022-01-18 09:19:53,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:53,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:19:53,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:53,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:19:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:19:53,998 INFO L87 Difference]: Start difference. First operand 4470 states and 11909 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:56,868 INFO L93 Difference]: Finished difference Result 14200 states and 37531 transitions. [2022-01-18 09:19:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:19:56,868 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:19:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:56,892 INFO L225 Difference]: With dead ends: 14200 [2022-01-18 09:19:56,892 INFO L226 Difference]: Without dead ends: 14200 [2022-01-18 09:19:56,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=552, Invalid=1610, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:19:56,893 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 1553 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:56,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1553 Valid, 3399 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:19:56,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14200 states. [2022-01-18 09:19:57,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14200 to 4638. [2022-01-18 09:19:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4638 states, 4636 states have (on average 2.653364969801553) internal successors, (12301), 4637 states have internal predecessors, (12301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4638 states to 4638 states and 12301 transitions. [2022-01-18 09:19:57,043 INFO L78 Accepts]: Start accepts. Automaton has 4638 states and 12301 transitions. Word has length 130 [2022-01-18 09:19:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:57,044 INFO L470 AbstractCegarLoop]: Abstraction has 4638 states and 12301 transitions. [2022-01-18 09:19:57,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4638 states and 12301 transitions. [2022-01-18 09:19:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:19:57,052 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:57,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:57,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 09:19:57,053 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:57,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash 30520042, now seen corresponding path program 4 times [2022-01-18 09:19:57,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:57,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059664457] [2022-01-18 09:19:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:57,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:57,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:57,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059664457] [2022-01-18 09:19:57,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059664457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:57,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:57,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:19:57,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836339907] [2022-01-18 09:19:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:57,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:19:57,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:57,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:19:57,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:19:57,581 INFO L87 Difference]: Start difference. First operand 4638 states and 12301 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:19:59,122 INFO L93 Difference]: Finished difference Result 13634 states and 36390 transitions. [2022-01-18 09:19:59,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:19:59,123 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:19:59,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:19:59,146 INFO L225 Difference]: With dead ends: 13634 [2022-01-18 09:19:59,146 INFO L226 Difference]: Without dead ends: 13634 [2022-01-18 09:19:59,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:19:59,148 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 1767 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:19:59,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1767 Valid, 3640 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:19:59,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13634 states. [2022-01-18 09:19:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13634 to 4782. [2022-01-18 09:19:59,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.660460251046025) internal successors, (12717), 4781 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12717 transitions. [2022-01-18 09:19:59,267 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12717 transitions. Word has length 130 [2022-01-18 09:19:59,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:19:59,267 INFO L470 AbstractCegarLoop]: Abstraction has 4782 states and 12717 transitions. [2022-01-18 09:19:59,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:19:59,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12717 transitions. [2022-01-18 09:19:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:19:59,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:19:59,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:19:59,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 09:19:59,275 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:19:59,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:19:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1593429466, now seen corresponding path program 5 times [2022-01-18 09:19:59,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:19:59,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543392213] [2022-01-18 09:19:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:19:59,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:19:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:19:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:19:59,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:19:59,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543392213] [2022-01-18 09:19:59,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543392213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:19:59,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:19:59,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:19:59,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20691135] [2022-01-18 09:19:59,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:19:59,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:19:59,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:19:59,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:19:59,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:19:59,684 INFO L87 Difference]: Start difference. First operand 4782 states and 12717 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:01,352 INFO L93 Difference]: Finished difference Result 14548 states and 38438 transitions. [2022-01-18 09:20:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:20:01,352 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:01,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:01,374 INFO L225 Difference]: With dead ends: 14548 [2022-01-18 09:20:01,374 INFO L226 Difference]: Without dead ends: 14548 [2022-01-18 09:20:01,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:20:01,375 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1715 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:01,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 2534 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:01,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-01-18 09:20:01,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 4782. [2022-01-18 09:20:01,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.660460251046025) internal successors, (12717), 4781 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:01,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12717 transitions. [2022-01-18 09:20:01,511 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12717 transitions. Word has length 130 [2022-01-18 09:20:01,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:01,512 INFO L470 AbstractCegarLoop]: Abstraction has 4782 states and 12717 transitions. [2022-01-18 09:20:01,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:01,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12717 transitions. [2022-01-18 09:20:01,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:01,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:01,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:01,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 09:20:01,520 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:01,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:01,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1417006346, now seen corresponding path program 6 times [2022-01-18 09:20:01,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:01,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208467676] [2022-01-18 09:20:01,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:01,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:01,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:01,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208467676] [2022-01-18 09:20:01,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208467676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:01,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:01,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:20:01,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128670705] [2022-01-18 09:20:01,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:01,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:20:01,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:01,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:20:01,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:20:01,921 INFO L87 Difference]: Start difference. First operand 4782 states and 12717 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:02,966 INFO L93 Difference]: Finished difference Result 6484 states and 16379 transitions. [2022-01-18 09:20:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:20:02,966 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:02,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:02,976 INFO L225 Difference]: With dead ends: 6484 [2022-01-18 09:20:02,976 INFO L226 Difference]: Without dead ends: 6484 [2022-01-18 09:20:02,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=432, Invalid=1374, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 09:20:02,977 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 1159 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:02,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 1860 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:02,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6484 states. [2022-01-18 09:20:03,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6484 to 4962. [2022-01-18 09:20:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4960 states have (on average 2.6546370967741937) internal successors, (13167), 4961 states have internal predecessors, (13167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 13167 transitions. [2022-01-18 09:20:03,072 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 13167 transitions. Word has length 130 [2022-01-18 09:20:03,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:03,072 INFO L470 AbstractCegarLoop]: Abstraction has 4962 states and 13167 transitions. [2022-01-18 09:20:03,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 13167 transitions. [2022-01-18 09:20:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:03,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:03,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:03,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 09:20:03,081 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:03,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1284450050, now seen corresponding path program 7 times [2022-01-18 09:20:03,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:03,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873973219] [2022-01-18 09:20:03,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:03,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:03,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:03,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:03,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873973219] [2022-01-18 09:20:03,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873973219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:03,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:03,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:03,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887014082] [2022-01-18 09:20:03,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:03,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:03,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:03,544 INFO L87 Difference]: Start difference. First operand 4962 states and 13167 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:05,325 INFO L93 Difference]: Finished difference Result 18160 states and 47567 transitions. [2022-01-18 09:20:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:20:05,325 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:05,352 INFO L225 Difference]: With dead ends: 18160 [2022-01-18 09:20:05,352 INFO L226 Difference]: Without dead ends: 18160 [2022-01-18 09:20:05,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:20:05,353 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1724 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:05,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1724 Valid, 2668 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:05,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18160 states. [2022-01-18 09:20:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18160 to 4964. [2022-01-18 09:20:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4964 states, 4962 states have (on average 2.6545747682386134) internal successors, (13172), 4963 states have internal predecessors, (13172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4964 states to 4964 states and 13172 transitions. [2022-01-18 09:20:05,511 INFO L78 Accepts]: Start accepts. Automaton has 4964 states and 13172 transitions. Word has length 130 [2022-01-18 09:20:05,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:05,511 INFO L470 AbstractCegarLoop]: Abstraction has 4964 states and 13172 transitions. [2022-01-18 09:20:05,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4964 states and 13172 transitions. [2022-01-18 09:20:05,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:05,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:05,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:05,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 09:20:05,519 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1311878072, now seen corresponding path program 8 times [2022-01-18 09:20:05,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:05,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567164700] [2022-01-18 09:20:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:05,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:06,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:06,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567164700] [2022-01-18 09:20:06,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567164700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:06,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:06,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:20:06,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533466014] [2022-01-18 09:20:06,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:06,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:20:06,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:06,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:20:06,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:20:06,199 INFO L87 Difference]: Start difference. First operand 4964 states and 13172 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:08,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:08,753 INFO L93 Difference]: Finished difference Result 15398 states and 40241 transitions. [2022-01-18 09:20:08,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:20:08,754 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:08,777 INFO L225 Difference]: With dead ends: 15398 [2022-01-18 09:20:08,777 INFO L226 Difference]: Without dead ends: 15398 [2022-01-18 09:20:08,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=553, Invalid=1609, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:20:08,778 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 1437 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:08,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 3612 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:20:08,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15398 states. [2022-01-18 09:20:08,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15398 to 4962. [2022-01-18 09:20:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4960 states have (on average 2.6546370967741937) internal successors, (13167), 4961 states have internal predecessors, (13167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 13167 transitions. [2022-01-18 09:20:08,904 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 13167 transitions. Word has length 130 [2022-01-18 09:20:08,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:08,904 INFO L470 AbstractCegarLoop]: Abstraction has 4962 states and 13167 transitions. [2022-01-18 09:20:08,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 13167 transitions. [2022-01-18 09:20:08,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:08,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:08,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:08,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 09:20:08,912 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:08,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash -992543418, now seen corresponding path program 9 times [2022-01-18 09:20:08,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:08,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636961356] [2022-01-18 09:20:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:08,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:09,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:09,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636961356] [2022-01-18 09:20:09,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636961356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:09,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:09,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:09,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393076086] [2022-01-18 09:20:09,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:09,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:09,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:09,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:09,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:09,283 INFO L87 Difference]: Start difference. First operand 4962 states and 13167 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:10,325 INFO L93 Difference]: Finished difference Result 6432 states and 16523 transitions. [2022-01-18 09:20:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:10,335 INFO L225 Difference]: With dead ends: 6432 [2022-01-18 09:20:10,335 INFO L226 Difference]: Without dead ends: 6432 [2022-01-18 09:20:10,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:20:10,336 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1105 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:10,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 2841 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:10,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6432 states. [2022-01-18 09:20:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6432 to 5450. [2022-01-18 09:20:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.654919236417034) internal successors, (14464), 5449 states have internal predecessors, (14464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14464 transitions. [2022-01-18 09:20:10,411 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14464 transitions. Word has length 130 [2022-01-18 09:20:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:10,412 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14464 transitions. [2022-01-18 09:20:10,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14464 transitions. [2022-01-18 09:20:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:10,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:10,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:10,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 09:20:10,421 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:10,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:10,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1446310794, now seen corresponding path program 10 times [2022-01-18 09:20:10,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:10,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502245015] [2022-01-18 09:20:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:10,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:10,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:10,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502245015] [2022-01-18 09:20:10,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502245015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:10,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:10,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:10,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168255060] [2022-01-18 09:20:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:10,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:10,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:10,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:10,832 INFO L87 Difference]: Start difference. First operand 5450 states and 14464 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:12,715 INFO L93 Difference]: Finished difference Result 22008 states and 58157 transitions. [2022-01-18 09:20:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:20:12,716 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:12,750 INFO L225 Difference]: With dead ends: 22008 [2022-01-18 09:20:12,750 INFO L226 Difference]: Without dead ends: 22008 [2022-01-18 09:20:12,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:20:12,753 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 2174 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:12,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2174 Valid, 2303 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22008 states. [2022-01-18 09:20:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22008 to 5576. [2022-01-18 09:20:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5574 states have (on average 2.6602081090778613) internal successors, (14828), 5575 states have internal predecessors, (14828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 14828 transitions. [2022-01-18 09:20:12,909 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 14828 transitions. Word has length 130 [2022-01-18 09:20:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:12,909 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 14828 transitions. [2022-01-18 09:20:12,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 14828 transitions. [2022-01-18 09:20:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:12,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:12,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:12,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 09:20:12,917 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:12,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:12,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1601093370, now seen corresponding path program 11 times [2022-01-18 09:20:12,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:12,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15729945] [2022-01-18 09:20:12,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:12,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:13,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:13,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15729945] [2022-01-18 09:20:13,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15729945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:13,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:13,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:13,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305809455] [2022-01-18 09:20:13,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:13,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:13,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:13,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:13,276 INFO L87 Difference]: Start difference. First operand 5576 states and 14828 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:14,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:14,389 INFO L93 Difference]: Finished difference Result 19360 states and 51404 transitions. [2022-01-18 09:20:14,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:14,389 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:14,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:14,418 INFO L225 Difference]: With dead ends: 19360 [2022-01-18 09:20:14,418 INFO L226 Difference]: Without dead ends: 19360 [2022-01-18 09:20:14,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:14,419 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1817 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:14,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1817 Valid, 2340 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19360 states. [2022-01-18 09:20:14,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19360 to 5772. [2022-01-18 09:20:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5772 states, 5770 states have (on average 2.669324090121317) internal successors, (15402), 5771 states have internal predecessors, (15402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5772 states to 5772 states and 15402 transitions. [2022-01-18 09:20:14,640 INFO L78 Accepts]: Start accepts. Automaton has 5772 states and 15402 transitions. Word has length 130 [2022-01-18 09:20:14,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:14,640 INFO L470 AbstractCegarLoop]: Abstraction has 5772 states and 15402 transitions. [2022-01-18 09:20:14,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5772 states and 15402 transitions. [2022-01-18 09:20:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:14,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:14,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:14,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 09:20:14,650 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:14,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:14,651 INFO L85 PathProgramCache]: Analyzing trace with hash 837459304, now seen corresponding path program 12 times [2022-01-18 09:20:14,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:14,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145350618] [2022-01-18 09:20:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:14,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:15,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:15,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145350618] [2022-01-18 09:20:15,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145350618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:15,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:15,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:15,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995241077] [2022-01-18 09:20:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:15,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:15,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:15,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:15,044 INFO L87 Difference]: Start difference. First operand 5772 states and 15402 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:15,998 INFO L93 Difference]: Finished difference Result 8608 states and 22531 transitions. [2022-01-18 09:20:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:16,011 INFO L225 Difference]: With dead ends: 8608 [2022-01-18 09:20:16,011 INFO L226 Difference]: Without dead ends: 8608 [2022-01-18 09:20:16,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:20:16,012 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 942 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:16,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 2654 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:16,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2022-01-18 09:20:16,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 5912. [2022-01-18 09:20:16,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.672419627749577) internal successors, (15794), 5911 states have internal predecessors, (15794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:16,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15794 transitions. [2022-01-18 09:20:16,107 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15794 transitions. Word has length 130 [2022-01-18 09:20:16,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:16,108 INFO L470 AbstractCegarLoop]: Abstraction has 5912 states and 15794 transitions. [2022-01-18 09:20:16,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:16,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15794 transitions. [2022-01-18 09:20:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:16,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:16,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:16,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 09:20:16,115 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:16,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:16,115 INFO L85 PathProgramCache]: Analyzing trace with hash 919780514, now seen corresponding path program 13 times [2022-01-18 09:20:16,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:16,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224739418] [2022-01-18 09:20:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:16,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:16,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:16,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224739418] [2022-01-18 09:20:16,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224739418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:16,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:16,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:16,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996931847] [2022-01-18 09:20:16,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:16,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:16,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:16,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:16,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:16,529 INFO L87 Difference]: Start difference. First operand 5912 states and 15794 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:17,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:17,463 INFO L93 Difference]: Finished difference Result 7391 states and 18983 transitions. [2022-01-18 09:20:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:17,463 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:17,473 INFO L225 Difference]: With dead ends: 7391 [2022-01-18 09:20:17,474 INFO L226 Difference]: Without dead ends: 7391 [2022-01-18 09:20:17,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:20:17,474 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 809 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:17,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 2121 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2022-01-18 09:20:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 5916. [2022-01-18 09:20:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 5914 states have (on average 2.672303009807237) internal successors, (15804), 5915 states have internal predecessors, (15804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 15804 transitions. [2022-01-18 09:20:17,559 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 15804 transitions. Word has length 130 [2022-01-18 09:20:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:17,560 INFO L470 AbstractCegarLoop]: Abstraction has 5916 states and 15804 transitions. [2022-01-18 09:20:17,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:17,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 15804 transitions. [2022-01-18 09:20:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:17,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:17,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:17,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 09:20:17,567 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:17,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:17,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1370139768, now seen corresponding path program 14 times [2022-01-18 09:20:17,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:17,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317180839] [2022-01-18 09:20:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:17,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:18,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:18,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317180839] [2022-01-18 09:20:18,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317180839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:18,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:18,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:20:18,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364349285] [2022-01-18 09:20:18,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:18,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:20:18,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:18,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:20:18,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:20:18,040 INFO L87 Difference]: Start difference. First operand 5916 states and 15804 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:19,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:19,439 INFO L93 Difference]: Finished difference Result 18230 states and 48215 transitions. [2022-01-18 09:20:19,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:20:19,440 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:19,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:19,466 INFO L225 Difference]: With dead ends: 18230 [2022-01-18 09:20:19,467 INFO L226 Difference]: Without dead ends: 18230 [2022-01-18 09:20:19,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:20:19,468 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1629 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:19,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 3851 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:19,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18230 states. [2022-01-18 09:20:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18230 to 5844. [2022-01-18 09:20:19,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5844 states, 5842 states have (on average 2.673228346456693) internal successors, (15617), 5843 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5844 states to 5844 states and 15617 transitions. [2022-01-18 09:20:19,634 INFO L78 Accepts]: Start accepts. Automaton has 5844 states and 15617 transitions. Word has length 130 [2022-01-18 09:20:19,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:19,635 INFO L470 AbstractCegarLoop]: Abstraction has 5844 states and 15617 transitions. [2022-01-18 09:20:19,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5844 states and 15617 transitions. [2022-01-18 09:20:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:19,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:19,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:19,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 09:20:19,642 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:19,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:19,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2084764312, now seen corresponding path program 15 times [2022-01-18 09:20:19,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:19,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928793563] [2022-01-18 09:20:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:19,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:20,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:20,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928793563] [2022-01-18 09:20:20,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928793563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:20,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:20,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:20:20,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93843872] [2022-01-18 09:20:20,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:20,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:20:20,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:20,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:20:20,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:20:20,430 INFO L87 Difference]: Start difference. First operand 5844 states and 15617 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:23,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:23,666 INFO L93 Difference]: Finished difference Result 14716 states and 38676 transitions. [2022-01-18 09:20:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:20:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:23,695 INFO L225 Difference]: With dead ends: 14716 [2022-01-18 09:20:23,695 INFO L226 Difference]: Without dead ends: 14716 [2022-01-18 09:20:23,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=757, Invalid=2903, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 09:20:23,697 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 1329 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:23,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 4645 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:20:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14716 states. [2022-01-18 09:20:23,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14716 to 5840. [2022-01-18 09:20:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5840 states, 5838 states have (on average 2.673347036656389) internal successors, (15607), 5839 states have internal predecessors, (15607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 15607 transitions. [2022-01-18 09:20:23,822 INFO L78 Accepts]: Start accepts. Automaton has 5840 states and 15607 transitions. Word has length 130 [2022-01-18 09:20:23,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:23,822 INFO L470 AbstractCegarLoop]: Abstraction has 5840 states and 15607 transitions. [2022-01-18 09:20:23,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5840 states and 15607 transitions. [2022-01-18 09:20:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:23,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:23,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:23,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 09:20:23,829 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2071891894, now seen corresponding path program 16 times [2022-01-18 09:20:23,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:23,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728184594] [2022-01-18 09:20:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:23,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:24,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:24,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:24,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728184594] [2022-01-18 09:20:24,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728184594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:24,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:24,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:20:24,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391610804] [2022-01-18 09:20:24,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:24,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:20:24,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:24,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:20:24,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:20:24,204 INFO L87 Difference]: Start difference. First operand 5840 states and 15607 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:25,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:25,340 INFO L93 Difference]: Finished difference Result 7480 states and 19141 transitions. [2022-01-18 09:20:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:20:25,340 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:25,356 INFO L225 Difference]: With dead ends: 7480 [2022-01-18 09:20:25,357 INFO L226 Difference]: Without dead ends: 7480 [2022-01-18 09:20:25,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=425, Invalid=1381, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 09:20:25,358 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 892 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:25,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [892 Valid, 2191 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:25,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2022-01-18 09:20:25,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 5888. [2022-01-18 09:20:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5888 states, 5886 states have (on average 2.6715936119605845) internal successors, (15725), 5887 states have internal predecessors, (15725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:25,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 15725 transitions. [2022-01-18 09:20:25,507 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 15725 transitions. Word has length 130 [2022-01-18 09:20:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:25,507 INFO L470 AbstractCegarLoop]: Abstraction has 5888 states and 15725 transitions. [2022-01-18 09:20:25,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 15725 transitions. [2022-01-18 09:20:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:25,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:25,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:25,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 09:20:25,515 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:25,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1334229154, now seen corresponding path program 17 times [2022-01-18 09:20:25,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:25,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914166817] [2022-01-18 09:20:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:25,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:25,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:25,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914166817] [2022-01-18 09:20:25,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914166817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:25,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:25,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:25,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550204626] [2022-01-18 09:20:25,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:25,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:25,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:25,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:25,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:25,911 INFO L87 Difference]: Start difference. First operand 5888 states and 15725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:27,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:27,385 INFO L93 Difference]: Finished difference Result 17408 states and 46247 transitions. [2022-01-18 09:20:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:27,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:27,416 INFO L225 Difference]: With dead ends: 17408 [2022-01-18 09:20:27,417 INFO L226 Difference]: Without dead ends: 17408 [2022-01-18 09:20:27,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:20:27,418 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1511 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:27,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 2332 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17408 states. [2022-01-18 09:20:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17408 to 5968. [2022-01-18 09:20:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5968 states, 5966 states have (on average 2.673985920214549) internal successors, (15953), 5967 states have internal predecessors, (15953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:27,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5968 states to 5968 states and 15953 transitions. [2022-01-18 09:20:27,557 INFO L78 Accepts]: Start accepts. Automaton has 5968 states and 15953 transitions. Word has length 130 [2022-01-18 09:20:27,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:27,558 INFO L470 AbstractCegarLoop]: Abstraction has 5968 states and 15953 transitions. [2022-01-18 09:20:27,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:27,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5968 states and 15953 transitions. [2022-01-18 09:20:27,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:27,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:27,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:27,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 09:20:27,565 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:27,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:27,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1262098968, now seen corresponding path program 18 times [2022-01-18 09:20:27,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:27,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576494580] [2022-01-18 09:20:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:27,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:27,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:27,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:27,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576494580] [2022-01-18 09:20:27,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576494580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:27,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:27,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:27,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565058495] [2022-01-18 09:20:27,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:27,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:27,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:27,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:27,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:27,956 INFO L87 Difference]: Start difference. First operand 5968 states and 15953 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:29,388 INFO L93 Difference]: Finished difference Result 17300 states and 45939 transitions. [2022-01-18 09:20:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:29,418 INFO L225 Difference]: With dead ends: 17300 [2022-01-18 09:20:29,418 INFO L226 Difference]: Without dead ends: 17300 [2022-01-18 09:20:29,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:20:29,419 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1591 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:29,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1591 Valid, 2321 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17300 states. [2022-01-18 09:20:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17300 to 5948. [2022-01-18 09:20:29,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 5946 states have (on average 2.6733938782374707) internal successors, (15896), 5947 states have internal predecessors, (15896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:29,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 15896 transitions. [2022-01-18 09:20:29,562 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 15896 transitions. Word has length 130 [2022-01-18 09:20:29,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:29,563 INFO L470 AbstractCegarLoop]: Abstraction has 5948 states and 15896 transitions. [2022-01-18 09:20:29,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 15896 transitions. [2022-01-18 09:20:29,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:29,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:29,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:29,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 09:20:29,571 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:29,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash -14535836, now seen corresponding path program 19 times [2022-01-18 09:20:29,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:29,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45557835] [2022-01-18 09:20:29,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:29,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:30,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:30,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:30,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45557835] [2022-01-18 09:20:30,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45557835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:30,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:30,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:20:30,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696780302] [2022-01-18 09:20:30,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:30,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:20:30,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:20:30,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:20:30,017 INFO L87 Difference]: Start difference. First operand 5948 states and 15896 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:31,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:31,400 INFO L93 Difference]: Finished difference Result 17632 states and 46895 transitions. [2022-01-18 09:20:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:20:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:31,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:31,429 INFO L225 Difference]: With dead ends: 17632 [2022-01-18 09:20:31,430 INFO L226 Difference]: Without dead ends: 17632 [2022-01-18 09:20:31,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:20:31,430 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1508 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:31,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 3679 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17632 states. [2022-01-18 09:20:31,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17632 to 5908. [2022-01-18 09:20:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5908 states, 5906 states have (on average 2.6721977649847615) internal successors, (15782), 5907 states have internal predecessors, (15782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 15782 transitions. [2022-01-18 09:20:31,578 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 15782 transitions. Word has length 130 [2022-01-18 09:20:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:31,579 INFO L470 AbstractCegarLoop]: Abstraction has 5908 states and 15782 transitions. [2022-01-18 09:20:31,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:31,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 15782 transitions. [2022-01-18 09:20:31,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:31,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:31,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:31,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 09:20:31,587 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:31,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1189452956, now seen corresponding path program 20 times [2022-01-18 09:20:31,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:31,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776660489] [2022-01-18 09:20:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:31,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:31,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:31,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776660489] [2022-01-18 09:20:31,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776660489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:31,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:31,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:31,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709037989] [2022-01-18 09:20:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:31,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:31,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:31,918 INFO L87 Difference]: Start difference. First operand 5908 states and 15782 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:33,001 INFO L93 Difference]: Finished difference Result 14286 states and 38160 transitions. [2022-01-18 09:20:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:33,002 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:33,024 INFO L225 Difference]: With dead ends: 14286 [2022-01-18 09:20:33,025 INFO L226 Difference]: Without dead ends: 14286 [2022-01-18 09:20:33,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:33,025 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1297 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:33,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1297 Valid, 2588 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14286 states. [2022-01-18 09:20:33,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14286 to 6016. [2022-01-18 09:20:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6016 states, 6014 states have (on average 2.6760891253741272) internal successors, (16094), 6015 states have internal predecessors, (16094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 16094 transitions. [2022-01-18 09:20:33,152 INFO L78 Accepts]: Start accepts. Automaton has 6016 states and 16094 transitions. Word has length 130 [2022-01-18 09:20:33,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:33,152 INFO L470 AbstractCegarLoop]: Abstraction has 6016 states and 16094 transitions. [2022-01-18 09:20:33,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6016 states and 16094 transitions. [2022-01-18 09:20:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:33,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:33,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:33,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 09:20:33,160 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:33,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:33,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1397465820, now seen corresponding path program 21 times [2022-01-18 09:20:33,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:33,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485574621] [2022-01-18 09:20:33,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:33,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:33,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:33,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485574621] [2022-01-18 09:20:33,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485574621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:33,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:33,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:33,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008138659] [2022-01-18 09:20:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:33,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:33,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:33,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:33,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:33,507 INFO L87 Difference]: Start difference. First operand 6016 states and 16094 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:34,991 INFO L93 Difference]: Finished difference Result 16978 states and 45065 transitions. [2022-01-18 09:20:34,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:34,991 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:34,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:35,016 INFO L225 Difference]: With dead ends: 16978 [2022-01-18 09:20:35,016 INFO L226 Difference]: Without dead ends: 16978 [2022-01-18 09:20:35,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:20:35,017 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1385 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:35,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 2330 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:35,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16978 states. [2022-01-18 09:20:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16978 to 6188. [2022-01-18 09:20:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6188 states, 6186 states have (on average 2.6813773035887487) internal successors, (16587), 6187 states have internal predecessors, (16587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6188 states to 6188 states and 16587 transitions. [2022-01-18 09:20:35,152 INFO L78 Accepts]: Start accepts. Automaton has 6188 states and 16587 transitions. Word has length 130 [2022-01-18 09:20:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:35,152 INFO L470 AbstractCegarLoop]: Abstraction has 6188 states and 16587 transitions. [2022-01-18 09:20:35,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 6188 states and 16587 transitions. [2022-01-18 09:20:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:35,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:35,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:35,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 09:20:35,160 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:35,161 INFO L85 PathProgramCache]: Analyzing trace with hash 301173354, now seen corresponding path program 22 times [2022-01-18 09:20:35,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:35,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459476824] [2022-01-18 09:20:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:35,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:35,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:35,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459476824] [2022-01-18 09:20:35,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459476824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:35,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:35,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:35,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67012943] [2022-01-18 09:20:35,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:35,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:35,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:35,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:35,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:35,500 INFO L87 Difference]: Start difference. First operand 6188 states and 16587 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:36,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:36,597 INFO L93 Difference]: Finished difference Result 16870 states and 44757 transitions. [2022-01-18 09:20:36,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:36,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:36,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:36,622 INFO L225 Difference]: With dead ends: 16870 [2022-01-18 09:20:36,622 INFO L226 Difference]: Without dead ends: 16870 [2022-01-18 09:20:36,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:36,623 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1388 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:36,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 2637 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:36,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16870 states. [2022-01-18 09:20:36,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16870 to 6168. [2022-01-18 09:20:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6166 states have (on average 2.680830360038923) internal successors, (16530), 6167 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 16530 transitions. [2022-01-18 09:20:36,765 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 16530 transitions. Word has length 130 [2022-01-18 09:20:36,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:36,766 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 16530 transitions. [2022-01-18 09:20:36,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 16530 transitions. [2022-01-18 09:20:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:36,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:36,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:36,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 09:20:36,774 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:36,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1548736486, now seen corresponding path program 23 times [2022-01-18 09:20:36,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:36,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204339214] [2022-01-18 09:20:36,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:36,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:37,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:37,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204339214] [2022-01-18 09:20:37,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204339214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:37,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:37,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:37,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891204591] [2022-01-18 09:20:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:37,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:37,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:37,138 INFO L87 Difference]: Start difference. First operand 6168 states and 16530 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:38,742 INFO L93 Difference]: Finished difference Result 14368 states and 38202 transitions. [2022-01-18 09:20:38,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:20:38,742 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:38,763 INFO L225 Difference]: With dead ends: 14368 [2022-01-18 09:20:38,763 INFO L226 Difference]: Without dead ends: 14368 [2022-01-18 09:20:38,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:20:38,764 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1440 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:38,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 2344 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14368 states. [2022-01-18 09:20:38,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14368 to 6128. [2022-01-18 09:20:38,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6128 states, 6126 states have (on average 2.679725759059745) internal successors, (16416), 6127 states have internal predecessors, (16416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6128 states to 6128 states and 16416 transitions. [2022-01-18 09:20:38,887 INFO L78 Accepts]: Start accepts. Automaton has 6128 states and 16416 transitions. Word has length 130 [2022-01-18 09:20:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:38,888 INFO L470 AbstractCegarLoop]: Abstraction has 6128 states and 16416 transitions. [2022-01-18 09:20:38,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6128 states and 16416 transitions. [2022-01-18 09:20:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:38,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:38,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:38,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 09:20:38,895 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:38,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:38,895 INFO L85 PathProgramCache]: Analyzing trace with hash 239356106, now seen corresponding path program 24 times [2022-01-18 09:20:38,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:38,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437004844] [2022-01-18 09:20:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:38,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:39,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:39,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437004844] [2022-01-18 09:20:39,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437004844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:39,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:39,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:39,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078777830] [2022-01-18 09:20:39,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:39,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:39,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:39,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:39,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:39,232 INFO L87 Difference]: Start difference. First operand 6128 states and 16416 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:40,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:40,337 INFO L93 Difference]: Finished difference Result 17166 states and 45637 transitions. [2022-01-18 09:20:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:40,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:40,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:40,363 INFO L225 Difference]: With dead ends: 17166 [2022-01-18 09:20:40,363 INFO L226 Difference]: Without dead ends: 17166 [2022-01-18 09:20:40,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:40,364 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1477 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:40,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 2384 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17166 states. [2022-01-18 09:20:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17166 to 6168. [2022-01-18 09:20:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6166 states have (on average 2.680830360038923) internal successors, (16530), 6167 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:40,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 16530 transitions. [2022-01-18 09:20:40,543 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 16530 transitions. Word has length 130 [2022-01-18 09:20:40,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:40,543 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 16530 transitions. [2022-01-18 09:20:40,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 16530 transitions. [2022-01-18 09:20:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:40,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:40,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:40,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 09:20:40,551 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:40,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:40,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1384593402, now seen corresponding path program 25 times [2022-01-18 09:20:40,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:40,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265875813] [2022-01-18 09:20:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:40,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:40,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:40,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:40,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265875813] [2022-01-18 09:20:40,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265875813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:40,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:40,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:40,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887312116] [2022-01-18 09:20:40,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:40,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:40,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:40,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:40,880 INFO L87 Difference]: Start difference. First operand 6168 states and 16530 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:42,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:42,014 INFO L93 Difference]: Finished difference Result 18132 states and 47789 transitions. [2022-01-18 09:20:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:42,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:42,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:42,041 INFO L225 Difference]: With dead ends: 18132 [2022-01-18 09:20:42,042 INFO L226 Difference]: Without dead ends: 18132 [2022-01-18 09:20:42,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:42,043 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1280 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:42,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 2733 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18132 states. [2022-01-18 09:20:42,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18132 to 6148. [2022-01-18 09:20:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6146 states have (on average 2.6802798568174424) internal successors, (16473), 6147 states have internal predecessors, (16473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 16473 transitions. [2022-01-18 09:20:42,191 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 16473 transitions. Word has length 130 [2022-01-18 09:20:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:42,191 INFO L470 AbstractCegarLoop]: Abstraction has 6148 states and 16473 transitions. [2022-01-18 09:20:42,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 16473 transitions. [2022-01-18 09:20:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:42,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:42,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:42,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 09:20:42,198 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1493286114, now seen corresponding path program 26 times [2022-01-18 09:20:42,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:42,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633712844] [2022-01-18 09:20:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:42,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:42,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:42,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633712844] [2022-01-18 09:20:42,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633712844] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:42,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:42,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:42,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886436727] [2022-01-18 09:20:42,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:42,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:42,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:42,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:42,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:42,549 INFO L87 Difference]: Start difference. First operand 6148 states and 16473 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:44,300 INFO L93 Difference]: Finished difference Result 19944 states and 52104 transitions. [2022-01-18 09:20:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:20:44,300 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:44,329 INFO L225 Difference]: With dead ends: 19944 [2022-01-18 09:20:44,329 INFO L226 Difference]: Without dead ends: 19944 [2022-01-18 09:20:44,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:20:44,330 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1600 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 2737 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:44,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1600 Valid, 2737 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:44,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19944 states. [2022-01-18 09:20:44,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19944 to 6168. [2022-01-18 09:20:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6166 states have (on average 2.680830360038923) internal successors, (16530), 6167 states have internal predecessors, (16530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 16530 transitions. [2022-01-18 09:20:44,483 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 16530 transitions. Word has length 130 [2022-01-18 09:20:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:44,483 INFO L470 AbstractCegarLoop]: Abstraction has 6168 states and 16530 transitions. [2022-01-18 09:20:44,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 16530 transitions. [2022-01-18 09:20:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:44,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:44,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:44,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 09:20:44,491 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1103042008, now seen corresponding path program 27 times [2022-01-18 09:20:44,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:44,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127544269] [2022-01-18 09:20:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:44,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:44,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:44,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127544269] [2022-01-18 09:20:44,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127544269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:44,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:44,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:20:44,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608432393] [2022-01-18 09:20:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:44,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:20:44,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:44,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:20:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:20:44,910 INFO L87 Difference]: Start difference. First operand 6168 states and 16530 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:46,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:46,371 INFO L93 Difference]: Finished difference Result 16660 states and 43654 transitions. [2022-01-18 09:20:46,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:20:46,372 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:46,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:46,397 INFO L225 Difference]: With dead ends: 16660 [2022-01-18 09:20:46,397 INFO L226 Difference]: Without dead ends: 16660 [2022-01-18 09:20:46,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:20:46,398 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1243 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:46,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 4197 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:20:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16660 states. [2022-01-18 09:20:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16660 to 6088. [2022-01-18 09:20:46,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6088 states, 6086 states have (on average 2.6786066381860008) internal successors, (16302), 6087 states have internal predecessors, (16302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6088 states to 6088 states and 16302 transitions. [2022-01-18 09:20:46,536 INFO L78 Accepts]: Start accepts. Automaton has 6088 states and 16302 transitions. Word has length 130 [2022-01-18 09:20:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:46,536 INFO L470 AbstractCegarLoop]: Abstraction has 6088 states and 16302 transitions. [2022-01-18 09:20:46,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 6088 states and 16302 transitions. [2022-01-18 09:20:46,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:46,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:46,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:46,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 09:20:46,543 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:46,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:46,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1756997454, now seen corresponding path program 28 times [2022-01-18 09:20:46,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:46,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816518153] [2022-01-18 09:20:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:46,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:46,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:46,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816518153] [2022-01-18 09:20:46,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816518153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:46,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:46,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:46,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120503028] [2022-01-18 09:20:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:46,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:46,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:46,884 INFO L87 Difference]: Start difference. First operand 6088 states and 16302 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:47,771 INFO L93 Difference]: Finished difference Result 7595 states and 19617 transitions. [2022-01-18 09:20:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:20:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:47,781 INFO L225 Difference]: With dead ends: 7595 [2022-01-18 09:20:47,781 INFO L226 Difference]: Without dead ends: 7595 [2022-01-18 09:20:47,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:20:47,783 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 870 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:47,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 2297 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2022-01-18 09:20:47,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 6186. [2022-01-18 09:20:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.674320827943079) internal successors, (16538), 6185 states have internal predecessors, (16538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16538 transitions. [2022-01-18 09:20:47,872 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16538 transitions. Word has length 130 [2022-01-18 09:20:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:47,872 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16538 transitions. [2022-01-18 09:20:47,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:47,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16538 transitions. [2022-01-18 09:20:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:47,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:47,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:47,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 09:20:47,880 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash 455737776, now seen corresponding path program 29 times [2022-01-18 09:20:47,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:47,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87612690] [2022-01-18 09:20:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:47,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:48,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:48,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87612690] [2022-01-18 09:20:48,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87612690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:48,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:48,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:48,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159209530] [2022-01-18 09:20:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:48,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:48,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:48,226 INFO L87 Difference]: Start difference. First operand 6186 states and 16538 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:49,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:49,298 INFO L93 Difference]: Finished difference Result 10690 states and 28525 transitions. [2022-01-18 09:20:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:49,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:49,313 INFO L225 Difference]: With dead ends: 10690 [2022-01-18 09:20:49,313 INFO L226 Difference]: Without dead ends: 10690 [2022-01-18 09:20:49,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:49,314 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1144 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:49,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 2293 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-01-18 09:20:49,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 6466. [2022-01-18 09:20:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 2.6840965346534653) internal successors, (17350), 6465 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 17350 transitions. [2022-01-18 09:20:49,417 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 17350 transitions. Word has length 130 [2022-01-18 09:20:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:49,417 INFO L470 AbstractCegarLoop]: Abstraction has 6466 states and 17350 transitions. [2022-01-18 09:20:49,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 17350 transitions. [2022-01-18 09:20:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:49,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:49,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:49,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 09:20:49,426 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:49,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:49,426 INFO L85 PathProgramCache]: Analyzing trace with hash 6107764, now seen corresponding path program 30 times [2022-01-18 09:20:49,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:49,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661170266] [2022-01-18 09:20:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:49,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:49,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:49,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661170266] [2022-01-18 09:20:49,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661170266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:49,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:49,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:20:49,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757692160] [2022-01-18 09:20:49,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:49,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:20:49,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:49,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:20:49,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:20:49,751 INFO L87 Difference]: Start difference. First operand 6466 states and 17350 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:50,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:50,873 INFO L93 Difference]: Finished difference Result 13558 states and 36022 transitions. [2022-01-18 09:20:50,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:20:50,874 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:50,894 INFO L225 Difference]: With dead ends: 13558 [2022-01-18 09:20:50,894 INFO L226 Difference]: Without dead ends: 13558 [2022-01-18 09:20:50,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:20:50,895 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1313 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:50,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 2344 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:50,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13558 states. [2022-01-18 09:20:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13558 to 6486. [2022-01-18 09:20:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 6484 states have (on average 2.6846082665021593) internal successors, (17407), 6485 states have internal predecessors, (17407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 17407 transitions. [2022-01-18 09:20:51,028 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 17407 transitions. Word has length 130 [2022-01-18 09:20:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:51,028 INFO L470 AbstractCegarLoop]: Abstraction has 6486 states and 17407 transitions. [2022-01-18 09:20:51,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 17407 transitions. [2022-01-18 09:20:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:51,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:51,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:51,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 09:20:51,037 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:51,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1617841744, now seen corresponding path program 31 times [2022-01-18 09:20:51,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:51,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481750766] [2022-01-18 09:20:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:51,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:51,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:51,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481750766] [2022-01-18 09:20:51,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481750766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:51,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:51,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:51,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591919582] [2022-01-18 09:20:51,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:51,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:51,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:51,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:51,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:51,429 INFO L87 Difference]: Start difference. First operand 6486 states and 17407 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:52,839 INFO L93 Difference]: Finished difference Result 11732 states and 30872 transitions. [2022-01-18 09:20:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:20:52,839 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:52,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:52,855 INFO L225 Difference]: With dead ends: 11732 [2022-01-18 09:20:52,855 INFO L226 Difference]: Without dead ends: 11732 [2022-01-18 09:20:52,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:20:52,856 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1487 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:52,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 2242 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:20:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11732 states. [2022-01-18 09:20:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11732 to 6466. [2022-01-18 09:20:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 2.6840965346534653) internal successors, (17350), 6465 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:52,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 17350 transitions. [2022-01-18 09:20:52,966 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 17350 transitions. Word has length 130 [2022-01-18 09:20:52,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:52,966 INFO L470 AbstractCegarLoop]: Abstraction has 6466 states and 17350 transitions. [2022-01-18 09:20:52,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:52,967 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 17350 transitions. [2022-01-18 09:20:52,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:52,974 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:52,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:52,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 09:20:52,975 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:52,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:52,975 INFO L85 PathProgramCache]: Analyzing trace with hash 936763258, now seen corresponding path program 32 times [2022-01-18 09:20:52,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:52,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733951701] [2022-01-18 09:20:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:52,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:53,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:53,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733951701] [2022-01-18 09:20:53,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733951701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:53,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:53,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:20:53,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626195481] [2022-01-18 09:20:53,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:53,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:20:53,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:53,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:20:53,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:20:53,366 INFO L87 Difference]: Start difference. First operand 6466 states and 17350 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:54,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:54,766 INFO L93 Difference]: Finished difference Result 15030 states and 39591 transitions. [2022-01-18 09:20:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:20:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:54,788 INFO L225 Difference]: With dead ends: 15030 [2022-01-18 09:20:54,788 INFO L226 Difference]: Without dead ends: 15030 [2022-01-18 09:20:54,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:20:54,789 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1319 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:54,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 3742 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:20:54,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15030 states. [2022-01-18 09:20:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15030 to 6506. [2022-01-18 09:20:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6504 states have (on average 2.6851168511685115) internal successors, (17464), 6505 states have internal predecessors, (17464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 17464 transitions. [2022-01-18 09:20:54,918 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 17464 transitions. Word has length 130 [2022-01-18 09:20:54,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:54,919 INFO L470 AbstractCegarLoop]: Abstraction has 6506 states and 17464 transitions. [2022-01-18 09:20:54,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 17464 transitions. [2022-01-18 09:20:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:54,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:54,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:54,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 09:20:54,927 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -687186250, now seen corresponding path program 33 times [2022-01-18 09:20:54,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:54,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197659693] [2022-01-18 09:20:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:54,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:55,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:55,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197659693] [2022-01-18 09:20:55,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197659693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:55,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:55,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:20:55,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164833216] [2022-01-18 09:20:55,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:55,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:20:55,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:55,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:20:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:20:55,551 INFO L87 Difference]: Start difference. First operand 6506 states and 17464 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:58,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:20:58,072 INFO L93 Difference]: Finished difference Result 12405 states and 32062 transitions. [2022-01-18 09:20:58,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:20:58,072 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:20:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:20:58,090 INFO L225 Difference]: With dead ends: 12405 [2022-01-18 09:20:58,090 INFO L226 Difference]: Without dead ends: 12405 [2022-01-18 09:20:58,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=543, Invalid=1619, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:20:58,091 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 1316 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:20:58,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 3101 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:20:58,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12405 states. [2022-01-18 09:20:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12405 to 6572. [2022-01-18 09:20:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6572 states, 6570 states have (on average 2.6832572298325723) internal successors, (17629), 6571 states have internal predecessors, (17629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6572 states to 6572 states and 17629 transitions. [2022-01-18 09:20:58,208 INFO L78 Accepts]: Start accepts. Automaton has 6572 states and 17629 transitions. Word has length 130 [2022-01-18 09:20:58,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:20:58,209 INFO L470 AbstractCegarLoop]: Abstraction has 6572 states and 17629 transitions. [2022-01-18 09:20:58,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:20:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 6572 states and 17629 transitions. [2022-01-18 09:20:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:20:58,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:20:58,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:20:58,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 09:20:58,218 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:20:58,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:20:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2104274030, now seen corresponding path program 34 times [2022-01-18 09:20:58,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:20:58,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714082337] [2022-01-18 09:20:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:20:58,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:20:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:20:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:20:58,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:20:58,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714082337] [2022-01-18 09:20:58,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714082337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:20:58,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:20:58,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:20:58,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337252583] [2022-01-18 09:20:58,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:20:58,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:20:58,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:20:58,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:20:58,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:20:58,556 INFO L87 Difference]: Start difference. First operand 6572 states and 17629 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:00,118 INFO L93 Difference]: Finished difference Result 16826 states and 44379 transitions. [2022-01-18 09:21:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:21:00,118 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:00,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:00,142 INFO L225 Difference]: With dead ends: 16826 [2022-01-18 09:21:00,142 INFO L226 Difference]: Without dead ends: 16826 [2022-01-18 09:21:00,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:21:00,143 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1438 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:00,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1438 Valid, 2627 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:00,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16826 states. [2022-01-18 09:21:00,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16826 to 6592. [2022-01-18 09:21:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6590 states have (on average 2.683763277693475) internal successors, (17686), 6591 states have internal predecessors, (17686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:00,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 17686 transitions. [2022-01-18 09:21:00,289 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 17686 transitions. Word has length 130 [2022-01-18 09:21:00,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:00,289 INFO L470 AbstractCegarLoop]: Abstraction has 6592 states and 17686 transitions. [2022-01-18 09:21:00,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:00,289 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 17686 transitions. [2022-01-18 09:21:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:00,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:00,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:00,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 09:21:00,298 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:00,298 INFO L85 PathProgramCache]: Analyzing trace with hash -405634856, now seen corresponding path program 35 times [2022-01-18 09:21:00,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:00,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527860372] [2022-01-18 09:21:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:00,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:00,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:00,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:00,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527860372] [2022-01-18 09:21:00,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527860372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:00,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:00,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:00,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878453962] [2022-01-18 09:21:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:00,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:00,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:00,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:00,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:00,670 INFO L87 Difference]: Start difference. First operand 6592 states and 17686 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:02,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:02,254 INFO L93 Difference]: Finished difference Result 13926 states and 36877 transitions. [2022-01-18 09:21:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:02,275 INFO L225 Difference]: With dead ends: 13926 [2022-01-18 09:21:02,275 INFO L226 Difference]: Without dead ends: 13926 [2022-01-18 09:21:02,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:21:02,276 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1365 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:02,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1365 Valid, 2314 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:02,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13926 states. [2022-01-18 09:21:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13926 to 6572. [2022-01-18 09:21:02,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6572 states, 6570 states have (on average 2.6832572298325723) internal successors, (17629), 6571 states have internal predecessors, (17629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6572 states to 6572 states and 17629 transitions. [2022-01-18 09:21:02,402 INFO L78 Accepts]: Start accepts. Automaton has 6572 states and 17629 transitions. Word has length 130 [2022-01-18 09:21:02,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:02,402 INFO L470 AbstractCegarLoop]: Abstraction has 6572 states and 17629 transitions. [2022-01-18 09:21:02,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6572 states and 17629 transitions. [2022-01-18 09:21:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:02,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:02,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:02,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 09:21:02,410 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1801668470, now seen corresponding path program 36 times [2022-01-18 09:21:02,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:02,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928025106] [2022-01-18 09:21:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:02,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:02,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:02,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928025106] [2022-01-18 09:21:02,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928025106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:02,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:02,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:02,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215194809] [2022-01-18 09:21:02,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:02,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:02,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:02,745 INFO L87 Difference]: Start difference. First operand 6572 states and 17629 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:04,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:04,358 INFO L93 Difference]: Finished difference Result 14740 states and 38000 transitions. [2022-01-18 09:21:04,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:04,358 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:04,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:04,379 INFO L225 Difference]: With dead ends: 14740 [2022-01-18 09:21:04,379 INFO L226 Difference]: Without dead ends: 14740 [2022-01-18 09:21:04,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:21:04,380 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1418 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:04,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1418 Valid, 2421 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14740 states. [2022-01-18 09:21:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14740 to 6466. [2022-01-18 09:21:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6466 states, 6464 states have (on average 2.6840965346534653) internal successors, (17350), 6465 states have internal predecessors, (17350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6466 states to 6466 states and 17350 transitions. [2022-01-18 09:21:04,504 INFO L78 Accepts]: Start accepts. Automaton has 6466 states and 17350 transitions. Word has length 130 [2022-01-18 09:21:04,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:04,504 INFO L470 AbstractCegarLoop]: Abstraction has 6466 states and 17350 transitions. [2022-01-18 09:21:04,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:04,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6466 states and 17350 transitions. [2022-01-18 09:21:04,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:04,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:04,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:04,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 09:21:04,512 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:04,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1008664802, now seen corresponding path program 37 times [2022-01-18 09:21:04,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:04,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78331037] [2022-01-18 09:21:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:04,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:04,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:04,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78331037] [2022-01-18 09:21:04,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78331037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:04,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:04,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:04,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684786323] [2022-01-18 09:21:04,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:04,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:04,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:04,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:04,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:04,910 INFO L87 Difference]: Start difference. First operand 6466 states and 17350 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:06,311 INFO L93 Difference]: Finished difference Result 16722 states and 44343 transitions. [2022-01-18 09:21:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:06,311 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:06,335 INFO L225 Difference]: With dead ends: 16722 [2022-01-18 09:21:06,335 INFO L226 Difference]: Without dead ends: 16722 [2022-01-18 09:21:06,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:06,336 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1339 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:06,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1339 Valid, 3639 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:06,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16722 states. [2022-01-18 09:21:06,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16722 to 6580. [2022-01-18 09:21:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6578 states have (on average 2.6872909698996654) internal successors, (17677), 6579 states have internal predecessors, (17677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:06,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 17677 transitions. [2022-01-18 09:21:06,485 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 17677 transitions. Word has length 130 [2022-01-18 09:21:06,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:06,485 INFO L470 AbstractCegarLoop]: Abstraction has 6580 states and 17677 transitions. [2022-01-18 09:21:06,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:06,485 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 17677 transitions. [2022-01-18 09:21:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:06,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:06,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:06,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 09:21:06,494 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:06,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1587663320, now seen corresponding path program 38 times [2022-01-18 09:21:06,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:06,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593877571] [2022-01-18 09:21:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:06,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:06,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:06,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593877571] [2022-01-18 09:21:06,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593877571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:06,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:06,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:06,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319046786] [2022-01-18 09:21:06,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:06,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:06,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:06,819 INFO L87 Difference]: Start difference. First operand 6580 states and 17677 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:08,316 INFO L93 Difference]: Finished difference Result 16614 states and 44035 transitions. [2022-01-18 09:21:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:21:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:08,341 INFO L225 Difference]: With dead ends: 16614 [2022-01-18 09:21:08,342 INFO L226 Difference]: Without dead ends: 16614 [2022-01-18 09:21:08,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:21:08,342 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1236 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:08,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 2427 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:08,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16614 states. [2022-01-18 09:21:08,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16614 to 6560. [2022-01-18 09:21:08,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6560 states, 6558 states have (on average 2.686794754498323) internal successors, (17620), 6559 states have internal predecessors, (17620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6560 states to 6560 states and 17620 transitions. [2022-01-18 09:21:08,488 INFO L78 Accepts]: Start accepts. Automaton has 6560 states and 17620 transitions. Word has length 130 [2022-01-18 09:21:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:08,488 INFO L470 AbstractCegarLoop]: Abstraction has 6560 states and 17620 transitions. [2022-01-18 09:21:08,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:08,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6560 states and 17620 transitions. [2022-01-18 09:21:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:08,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:08,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:08,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 09:21:08,496 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:08,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash -340100188, now seen corresponding path program 39 times [2022-01-18 09:21:08,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:08,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680970125] [2022-01-18 09:21:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:08,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:08,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:08,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680970125] [2022-01-18 09:21:08,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680970125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:08,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:08,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:08,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780821952] [2022-01-18 09:21:08,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:08,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:08,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:08,894 INFO L87 Difference]: Start difference. First operand 6560 states and 17620 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:10,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:10,261 INFO L93 Difference]: Finished difference Result 14112 states and 37480 transitions. [2022-01-18 09:21:10,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:10,261 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:10,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:10,283 INFO L225 Difference]: With dead ends: 14112 [2022-01-18 09:21:10,283 INFO L226 Difference]: Without dead ends: 14112 [2022-01-18 09:21:10,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:10,284 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1161 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:10,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3705 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14112 states. [2022-01-18 09:21:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14112 to 6520. [2022-01-18 09:21:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6520 states, 6518 states have (on average 2.6857931880945074) internal successors, (17506), 6519 states have internal predecessors, (17506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6520 states to 6520 states and 17506 transitions. [2022-01-18 09:21:10,418 INFO L78 Accepts]: Start accepts. Automaton has 6520 states and 17506 transitions. Word has length 130 [2022-01-18 09:21:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:10,418 INFO L470 AbstractCegarLoop]: Abstraction has 6520 states and 17506 transitions. [2022-01-18 09:21:10,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:10,418 INFO L276 IsEmpty]: Start isEmpty. Operand 6520 states and 17506 transitions. [2022-01-18 09:21:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:10,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:10,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:10,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 09:21:10,426 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1649480568, now seen corresponding path program 40 times [2022-01-18 09:21:10,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:10,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535710158] [2022-01-18 09:21:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:10,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:10,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:10,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535710158] [2022-01-18 09:21:10,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535710158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:10,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:10,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:10,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471733458] [2022-01-18 09:21:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:10,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:10,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:10,771 INFO L87 Difference]: Start difference. First operand 6520 states and 17506 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:11,863 INFO L93 Difference]: Finished difference Result 11062 states and 29439 transitions. [2022-01-18 09:21:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:11,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:11,878 INFO L225 Difference]: With dead ends: 11062 [2022-01-18 09:21:11,878 INFO L226 Difference]: Without dead ends: 11062 [2022-01-18 09:21:11,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:11,879 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1187 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:11,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 2579 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-01-18 09:21:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 6552. [2022-01-18 09:21:11,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6550 states have (on average 2.687022900763359) internal successors, (17600), 6551 states have internal predecessors, (17600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 17600 transitions. [2022-01-18 09:21:11,988 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 17600 transitions. Word has length 130 [2022-01-18 09:21:11,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:11,989 INFO L470 AbstractCegarLoop]: Abstraction has 6552 states and 17600 transitions. [2022-01-18 09:21:11,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:11,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 17600 transitions. [2022-01-18 09:21:11,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:11,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:11,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:11,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 09:21:11,997 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:11,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1021537220, now seen corresponding path program 41 times [2022-01-18 09:21:11,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:11,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979032225] [2022-01-18 09:21:11,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:11,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:12,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:12,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:12,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979032225] [2022-01-18 09:21:12,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979032225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:12,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:12,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:12,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605748168] [2022-01-18 09:21:12,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:12,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:12,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:12,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:12,315 INFO L87 Difference]: Start difference. First operand 6552 states and 17600 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:13,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:13,426 INFO L93 Difference]: Finished difference Result 12028 states and 31591 transitions. [2022-01-18 09:21:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:13,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:13,442 INFO L225 Difference]: With dead ends: 12028 [2022-01-18 09:21:13,442 INFO L226 Difference]: Without dead ends: 12028 [2022-01-18 09:21:13,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:13,443 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1129 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:13,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 2655 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:13,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12028 states. [2022-01-18 09:21:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12028 to 6532. [2022-01-18 09:21:13,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 6530 states have (on average 2.6865237366003063) internal successors, (17543), 6531 states have internal predecessors, (17543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:13,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 17543 transitions. [2022-01-18 09:21:13,549 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 17543 transitions. Word has length 130 [2022-01-18 09:21:13,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:13,549 INFO L470 AbstractCegarLoop]: Abstraction has 6532 states and 17543 transitions. [2022-01-18 09:21:13,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 17543 transitions. [2022-01-18 09:21:13,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:13,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:13,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:13,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 09:21:13,557 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:13,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash -395550560, now seen corresponding path program 42 times [2022-01-18 09:21:13,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:13,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846547227] [2022-01-18 09:21:13,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:13,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:13,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:13,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846547227] [2022-01-18 09:21:13,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846547227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:13,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:13,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:13,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986520638] [2022-01-18 09:21:13,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:13,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:13,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:13,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:13,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:13,874 INFO L87 Difference]: Start difference. First operand 6532 states and 17543 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:14,960 INFO L93 Difference]: Finished difference Result 15494 states and 40552 transitions. [2022-01-18 09:21:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:14,960 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:14,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:14,981 INFO L225 Difference]: With dead ends: 15494 [2022-01-18 09:21:14,981 INFO L226 Difference]: Without dead ends: 15494 [2022-01-18 09:21:14,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:14,982 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1157 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:14,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2436 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:14,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15494 states. [2022-01-18 09:21:15,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15494 to 6552. [2022-01-18 09:21:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6550 states have (on average 2.687022900763359) internal successors, (17600), 6551 states have internal predecessors, (17600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 17600 transitions. [2022-01-18 09:21:15,103 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 17600 transitions. Word has length 130 [2022-01-18 09:21:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:15,103 INFO L470 AbstractCegarLoop]: Abstraction has 6552 states and 17600 transitions. [2022-01-18 09:21:15,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:15,104 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 17600 transitions. [2022-01-18 09:21:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:15,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:15,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:15,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 09:21:15,111 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:15,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:15,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1303088614, now seen corresponding path program 43 times [2022-01-18 09:21:15,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:15,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137421916] [2022-01-18 09:21:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:15,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:15,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:15,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137421916] [2022-01-18 09:21:15,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137421916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:15,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:15,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:21:15,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5213170] [2022-01-18 09:21:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:15,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:21:15,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:15,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:21:15,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:21:15,708 INFO L87 Difference]: Start difference. First operand 6552 states and 17600 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:18,137 INFO L93 Difference]: Finished difference Result 12282 states and 31922 transitions. [2022-01-18 09:21:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:21:18,138 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:18,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:18,154 INFO L225 Difference]: With dead ends: 12282 [2022-01-18 09:21:18,154 INFO L226 Difference]: Without dead ends: 12282 [2022-01-18 09:21:18,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=553, Invalid=1609, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:21:18,155 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1096 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3474 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:18,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3474 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:21:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2022-01-18 09:21:18,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 6608. [2022-01-18 09:21:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6608 states, 6606 states have (on average 2.685437481077808) internal successors, (17740), 6607 states have internal predecessors, (17740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6608 states to 6608 states and 17740 transitions. [2022-01-18 09:21:18,275 INFO L78 Accepts]: Start accepts. Automaton has 6608 states and 17740 transitions. Word has length 130 [2022-01-18 09:21:18,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:18,275 INFO L470 AbstractCegarLoop]: Abstraction has 6608 states and 17740 transitions. [2022-01-18 09:21:18,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6608 states and 17740 transitions. [2022-01-18 09:21:18,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:18,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:18,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:18,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 09:21:18,283 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:18,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:18,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1244826918, now seen corresponding path program 44 times [2022-01-18 09:21:18,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:18,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119866997] [2022-01-18 09:21:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:18,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:18,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:18,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119866997] [2022-01-18 09:21:18,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119866997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:18,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:18,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:18,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330111277] [2022-01-18 09:21:18,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:18,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:18,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:18,584 INFO L87 Difference]: Start difference. First operand 6608 states and 17740 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:19,639 INFO L93 Difference]: Finished difference Result 12234 states and 32154 transitions. [2022-01-18 09:21:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:19,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:19,656 INFO L225 Difference]: With dead ends: 12234 [2022-01-18 09:21:19,656 INFO L226 Difference]: Without dead ends: 12234 [2022-01-18 09:21:19,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:19,657 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1170 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:19,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 2428 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12234 states. [2022-01-18 09:21:19,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12234 to 6472. [2022-01-18 09:21:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6472 states, 6470 states have (on average 2.6850077279752704) internal successors, (17372), 6471 states have internal predecessors, (17372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 17372 transitions. [2022-01-18 09:21:19,773 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 17372 transitions. Word has length 130 [2022-01-18 09:21:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:19,773 INFO L470 AbstractCegarLoop]: Abstraction has 6472 states and 17372 transitions. [2022-01-18 09:21:19,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 17372 transitions. [2022-01-18 09:21:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:19,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:19,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:19,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 09:21:19,781 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash -345771456, now seen corresponding path program 45 times [2022-01-18 09:21:19,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:19,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909189301] [2022-01-18 09:21:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:19,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:20,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:20,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:20,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909189301] [2022-01-18 09:21:20,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909189301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:20,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:20,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:20,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774892149] [2022-01-18 09:21:20,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:20,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:20,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:20,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:20,167 INFO L87 Difference]: Start difference. First operand 6472 states and 17372 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:21,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:21,615 INFO L93 Difference]: Finished difference Result 15978 states and 42052 transitions. [2022-01-18 09:21:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:21,615 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:21,638 INFO L225 Difference]: With dead ends: 15978 [2022-01-18 09:21:21,638 INFO L226 Difference]: Without dead ends: 15978 [2022-01-18 09:21:21,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:21,639 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1303 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:21,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 3882 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15978 states. [2022-01-18 09:21:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15978 to 6552. [2022-01-18 09:21:21,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6550 states have (on average 2.687022900763359) internal successors, (17600), 6551 states have internal predecessors, (17600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 17600 transitions. [2022-01-18 09:21:21,777 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 17600 transitions. Word has length 130 [2022-01-18 09:21:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:21,778 INFO L470 AbstractCegarLoop]: Abstraction has 6552 states and 17600 transitions. [2022-01-18 09:21:21,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 17600 transitions. [2022-01-18 09:21:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:21,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:21,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:21,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 09:21:21,786 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:21,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1352867718, now seen corresponding path program 46 times [2022-01-18 09:21:21,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:21,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561254496] [2022-01-18 09:21:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:21,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:22,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:22,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561254496] [2022-01-18 09:21:22,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561254496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:22,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:22,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:22,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574664316] [2022-01-18 09:21:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:22,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:22,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:22,171 INFO L87 Difference]: Start difference. First operand 6552 states and 17600 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:23,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:23,550 INFO L93 Difference]: Finished difference Result 15870 states and 41744 transitions. [2022-01-18 09:21:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:23,550 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:23,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:23,573 INFO L225 Difference]: With dead ends: 15870 [2022-01-18 09:21:23,573 INFO L226 Difference]: Without dead ends: 15870 [2022-01-18 09:21:23,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:23,574 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1156 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 3872 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:23,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 3872 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:23,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15870 states. [2022-01-18 09:21:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15870 to 6532. [2022-01-18 09:21:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 6530 states have (on average 2.6865237366003063) internal successors, (17543), 6531 states have internal predecessors, (17543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:23,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 17543 transitions. [2022-01-18 09:21:23,712 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 17543 transitions. Word has length 130 [2022-01-18 09:21:23,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:23,712 INFO L470 AbstractCegarLoop]: Abstraction has 6532 states and 17543 transitions. [2022-01-18 09:21:23,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 17543 transitions. [2022-01-18 09:21:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:23,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:23,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:23,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 09:21:23,720 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:23,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1694536446, now seen corresponding path program 47 times [2022-01-18 09:21:23,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:23,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238542714] [2022-01-18 09:21:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:23,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:24,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238542714] [2022-01-18 09:21:24,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238542714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:24,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:24,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:21:24,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467606016] [2022-01-18 09:21:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:24,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:21:24,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:21:24,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:21:24,316 INFO L87 Difference]: Start difference. First operand 6532 states and 17543 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:26,685 INFO L93 Difference]: Finished difference Result 11776 states and 30851 transitions. [2022-01-18 09:21:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:21:26,686 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:26,730 INFO L225 Difference]: With dead ends: 11776 [2022-01-18 09:21:26,730 INFO L226 Difference]: Without dead ends: 11776 [2022-01-18 09:21:26,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:21:26,731 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1130 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:26,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 3684 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:21:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2022-01-18 09:21:26,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 6610. [2022-01-18 09:21:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6610 states, 6608 states have (on average 2.684322033898305) internal successors, (17738), 6609 states have internal predecessors, (17738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:26,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6610 states to 6610 states and 17738 transitions. [2022-01-18 09:21:26,828 INFO L78 Accepts]: Start accepts. Automaton has 6610 states and 17738 transitions. Word has length 130 [2022-01-18 09:21:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:26,828 INFO L470 AbstractCegarLoop]: Abstraction has 6610 states and 17738 transitions. [2022-01-18 09:21:26,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6610 states and 17738 transitions. [2022-01-18 09:21:26,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:26,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:26,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:26,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 09:21:26,837 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:26,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:26,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1901089790, now seen corresponding path program 48 times [2022-01-18 09:21:26,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:26,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877902358] [2022-01-18 09:21:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:26,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:27,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:27,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877902358] [2022-01-18 09:21:27,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877902358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:27,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:27,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:27,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159839307] [2022-01-18 09:21:27,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:27,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:27,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:27,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:27,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:27,195 INFO L87 Difference]: Start difference. First operand 6610 states and 17738 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:28,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:28,936 INFO L93 Difference]: Finished difference Result 16312 states and 42967 transitions. [2022-01-18 09:21:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:21:28,936 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:28,961 INFO L225 Difference]: With dead ends: 16312 [2022-01-18 09:21:28,961 INFO L226 Difference]: Without dead ends: 16312 [2022-01-18 09:21:28,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:21:28,961 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1090 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:28,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2842 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:28,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16312 states. [2022-01-18 09:21:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16312 to 6566. [2022-01-18 09:21:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6566 states, 6564 states have (on average 2.6834247410115784) internal successors, (17614), 6565 states have internal predecessors, (17614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:29,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6566 states to 6566 states and 17614 transitions. [2022-01-18 09:21:29,107 INFO L78 Accepts]: Start accepts. Automaton has 6566 states and 17614 transitions. Word has length 130 [2022-01-18 09:21:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:29,107 INFO L470 AbstractCegarLoop]: Abstraction has 6566 states and 17614 transitions. [2022-01-18 09:21:29,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6566 states and 17614 transitions. [2022-01-18 09:21:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:29,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:29,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:29,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 09:21:29,115 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1218960386, now seen corresponding path program 49 times [2022-01-18 09:21:29,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:29,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408856217] [2022-01-18 09:21:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:29,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:29,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:29,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408856217] [2022-01-18 09:21:29,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408856217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:29,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:29,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 09:21:29,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260230879] [2022-01-18 09:21:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:29,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 09:21:29,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 09:21:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-01-18 09:21:29,736 INFO L87 Difference]: Start difference. First operand 6566 states and 17614 transitions. Second operand has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:32,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:32,621 INFO L93 Difference]: Finished difference Result 14766 states and 38915 transitions. [2022-01-18 09:21:32,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:21:32,621 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:32,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:32,641 INFO L225 Difference]: With dead ends: 14766 [2022-01-18 09:21:32,641 INFO L226 Difference]: Without dead ends: 14766 [2022-01-18 09:21:32,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:21:32,642 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 1130 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:32,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 3779 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:21:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14766 states. [2022-01-18 09:21:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14766 to 6620. [2022-01-18 09:21:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6620 states, 6618 states have (on average 2.6861589604110003) internal successors, (17777), 6619 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:32,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6620 states to 6620 states and 17777 transitions. [2022-01-18 09:21:32,758 INFO L78 Accepts]: Start accepts. Automaton has 6620 states and 17777 transitions. Word has length 130 [2022-01-18 09:21:32,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:32,758 INFO L470 AbstractCegarLoop]: Abstraction has 6620 states and 17777 transitions. [2022-01-18 09:21:32,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 6620 states and 17777 transitions. [2022-01-18 09:21:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:32,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:32,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:32,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 09:21:32,767 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:32,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:32,767 INFO L85 PathProgramCache]: Analyzing trace with hash 626218434, now seen corresponding path program 50 times [2022-01-18 09:21:32,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:32,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959953931] [2022-01-18 09:21:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:32,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:33,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:33,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959953931] [2022-01-18 09:21:33,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959953931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:33,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:33,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:33,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665281700] [2022-01-18 09:21:33,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:33,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:33,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:33,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:33,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:33,080 INFO L87 Difference]: Start difference. First operand 6620 states and 17777 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:34,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:34,164 INFO L93 Difference]: Finished difference Result 12504 states and 33089 transitions. [2022-01-18 09:21:34,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:34,165 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:34,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:34,184 INFO L225 Difference]: With dead ends: 12504 [2022-01-18 09:21:34,184 INFO L226 Difference]: Without dead ends: 12504 [2022-01-18 09:21:34,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:34,185 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 959 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:34,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [959 Valid, 2513 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:34,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12504 states. [2022-01-18 09:21:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12504 to 6452. [2022-01-18 09:21:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6452 states, 6450 states have (on average 2.684496124031008) internal successors, (17315), 6451 states have internal predecessors, (17315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6452 states to 6452 states and 17315 transitions. [2022-01-18 09:21:34,304 INFO L78 Accepts]: Start accepts. Automaton has 6452 states and 17315 transitions. Word has length 130 [2022-01-18 09:21:34,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:34,304 INFO L470 AbstractCegarLoop]: Abstraction has 6452 states and 17315 transitions. [2022-01-18 09:21:34,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6452 states and 17315 transitions. [2022-01-18 09:21:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:34,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:34,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:34,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 09:21:34,312 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:34,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2024487764, now seen corresponding path program 51 times [2022-01-18 09:21:34,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:34,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394322867] [2022-01-18 09:21:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:34,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:34,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:34,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394322867] [2022-01-18 09:21:34,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394322867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:34,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:34,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:34,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24729470] [2022-01-18 09:21:34,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:34,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:34,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:34,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:34,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:34,637 INFO L87 Difference]: Start difference. First operand 6452 states and 17315 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:35,401 INFO L93 Difference]: Finished difference Result 7107 states and 18693 transitions. [2022-01-18 09:21:35,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:35,402 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:35,411 INFO L225 Difference]: With dead ends: 7107 [2022-01-18 09:21:35,411 INFO L226 Difference]: Without dead ends: 7107 [2022-01-18 09:21:35,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:35,412 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 803 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:35,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [803 Valid, 1853 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:35,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7107 states. [2022-01-18 09:21:35,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7107 to 6100. [2022-01-18 09:21:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6098 states have (on average 2.6994096425057394) internal successors, (16461), 6099 states have internal predecessors, (16461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 16461 transitions. [2022-01-18 09:21:35,492 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 16461 transitions. Word has length 130 [2022-01-18 09:21:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:35,492 INFO L470 AbstractCegarLoop]: Abstraction has 6100 states and 16461 transitions. [2022-01-18 09:21:35,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 16461 transitions. [2022-01-18 09:21:35,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:35,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:35,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:35,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 09:21:35,499 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:35,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash -571409422, now seen corresponding path program 52 times [2022-01-18 09:21:35,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:35,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575390776] [2022-01-18 09:21:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:35,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:35,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:35,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:35,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575390776] [2022-01-18 09:21:35,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575390776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:35,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:35,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:35,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384664646] [2022-01-18 09:21:35,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:35,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:35,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:35,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:35,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:35,814 INFO L87 Difference]: Start difference. First operand 6100 states and 16461 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:36,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:36,861 INFO L93 Difference]: Finished difference Result 10052 states and 26761 transitions. [2022-01-18 09:21:36,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:36,861 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:36,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:36,875 INFO L225 Difference]: With dead ends: 10052 [2022-01-18 09:21:36,875 INFO L226 Difference]: Without dead ends: 10052 [2022-01-18 09:21:36,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:36,875 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1245 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:36,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 2268 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:36,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2022-01-18 09:21:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 6172. [2022-01-18 09:21:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6172 states, 6170 states have (on average 2.7016207455429497) internal successors, (16669), 6171 states have internal predecessors, (16669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6172 states to 6172 states and 16669 transitions. [2022-01-18 09:21:36,989 INFO L78 Accepts]: Start accepts. Automaton has 6172 states and 16669 transitions. Word has length 130 [2022-01-18 09:21:36,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:36,990 INFO L470 AbstractCegarLoop]: Abstraction has 6172 states and 16669 transitions. [2022-01-18 09:21:36,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6172 states and 16669 transitions. [2022-01-18 09:21:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:36,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:36,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:36,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 09:21:36,999 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:37,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:37,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1127229752, now seen corresponding path program 53 times [2022-01-18 09:21:37,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:37,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769121566] [2022-01-18 09:21:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:37,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:37,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:37,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:37,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769121566] [2022-01-18 09:21:37,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769121566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:37,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:37,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:37,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511889368] [2022-01-18 09:21:37,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:37,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:37,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:37,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:37,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:37,309 INFO L87 Difference]: Start difference. First operand 6172 states and 16669 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:38,352 INFO L93 Difference]: Finished difference Result 9960 states and 26489 transitions. [2022-01-18 09:21:38,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:38,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:38,366 INFO L225 Difference]: With dead ends: 9960 [2022-01-18 09:21:38,366 INFO L226 Difference]: Without dead ends: 9960 [2022-01-18 09:21:38,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:38,366 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1098 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:38,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 2350 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:38,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9960 states. [2022-01-18 09:21:38,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9960 to 6154. [2022-01-18 09:21:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.701072821846554) internal successors, (16617), 6153 states have internal predecessors, (16617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16617 transitions. [2022-01-18 09:21:38,462 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16617 transitions. Word has length 130 [2022-01-18 09:21:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:38,463 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16617 transitions. [2022-01-18 09:21:38,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16617 transitions. [2022-01-18 09:21:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:38,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:38,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:38,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 09:21:38,470 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:38,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1920174412, now seen corresponding path program 54 times [2022-01-18 09:21:38,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:38,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425983370] [2022-01-18 09:21:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:38,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:38,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:38,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425983370] [2022-01-18 09:21:38,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425983370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:38,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:38,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:38,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014790252] [2022-01-18 09:21:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:38,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:38,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:38,788 INFO L87 Difference]: Start difference. First operand 6154 states and 16617 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:39,816 INFO L93 Difference]: Finished difference Result 10256 states and 27355 transitions. [2022-01-18 09:21:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:39,816 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:39,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:39,829 INFO L225 Difference]: With dead ends: 10256 [2022-01-18 09:21:39,829 INFO L226 Difference]: Without dead ends: 10256 [2022-01-18 09:21:39,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:39,832 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 960 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:39,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 2421 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:39,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10256 states. [2022-01-18 09:21:39,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10256 to 6118. [2022-01-18 09:21:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 6116 states have (on average 2.6999672988881622) internal successors, (16513), 6117 states have internal predecessors, (16513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 16513 transitions. [2022-01-18 09:21:39,915 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 16513 transitions. Word has length 130 [2022-01-18 09:21:39,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:39,915 INFO L470 AbstractCegarLoop]: Abstraction has 6118 states and 16513 transitions. [2022-01-18 09:21:39,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:39,915 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 16513 transitions. [2022-01-18 09:21:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:39,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:39,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:39,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 09:21:39,922 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:39,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:39,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1199875764, now seen corresponding path program 55 times [2022-01-18 09:21:39,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:39,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353976295] [2022-01-18 09:21:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:39,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:40,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:40,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353976295] [2022-01-18 09:21:40,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353976295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:40,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:40,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:40,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89226800] [2022-01-18 09:21:40,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:40,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:40,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:40,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:40,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:40,294 INFO L87 Difference]: Start difference. First operand 6118 states and 16513 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:41,823 INFO L93 Difference]: Finished difference Result 10548 states and 28211 transitions. [2022-01-18 09:21:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:21:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:41,837 INFO L225 Difference]: With dead ends: 10548 [2022-01-18 09:21:41,837 INFO L226 Difference]: Without dead ends: 10548 [2022-01-18 09:21:41,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:41,838 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 986 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:41,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 2429 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:41,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-01-18 09:21:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 6100. [2022-01-18 09:21:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6100 states, 6098 states have (on average 2.6994096425057394) internal successors, (16461), 6099 states have internal predecessors, (16461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6100 states to 6100 states and 16461 transitions. [2022-01-18 09:21:41,968 INFO L78 Accepts]: Start accepts. Automaton has 6100 states and 16461 transitions. Word has length 130 [2022-01-18 09:21:41,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:41,968 INFO L470 AbstractCegarLoop]: Abstraction has 6100 states and 16461 transitions. [2022-01-18 09:21:41,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6100 states and 16461 transitions. [2022-01-18 09:21:41,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:41,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:41,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:41,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 09:21:41,974 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:41,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash 598553976, now seen corresponding path program 56 times [2022-01-18 09:21:41,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:41,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746461505] [2022-01-18 09:21:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:41,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:42,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:42,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746461505] [2022-01-18 09:21:42,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746461505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:42,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:42,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:42,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917285414] [2022-01-18 09:21:42,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:42,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:42,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:42,373 INFO L87 Difference]: Start difference. First operand 6100 states and 16461 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:43,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:43,675 INFO L93 Difference]: Finished difference Result 6984 states and 18769 transitions. [2022-01-18 09:21:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:43,676 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:43,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:43,684 INFO L225 Difference]: With dead ends: 6984 [2022-01-18 09:21:43,684 INFO L226 Difference]: Without dead ends: 6984 [2022-01-18 09:21:43,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:43,688 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 906 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:43,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [906 Valid, 3499 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:43,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2022-01-18 09:21:43,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6096. [2022-01-18 09:21:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6096 states, 6094 states have (on average 2.6995405316704955) internal successors, (16451), 6095 states have internal predecessors, (16451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:43,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6096 states to 6096 states and 16451 transitions. [2022-01-18 09:21:43,752 INFO L78 Accepts]: Start accepts. Automaton has 6096 states and 16451 transitions. Word has length 130 [2022-01-18 09:21:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:43,752 INFO L470 AbstractCegarLoop]: Abstraction has 6096 states and 16451 transitions. [2022-01-18 09:21:43,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 6096 states and 16451 transitions. [2022-01-18 09:21:43,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:43,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:43,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:43,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 09:21:43,759 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:43,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1844841598, now seen corresponding path program 57 times [2022-01-18 09:21:43,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:43,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120215732] [2022-01-18 09:21:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:43,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:44,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:44,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120215732] [2022-01-18 09:21:44,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120215732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:44,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:44,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:44,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757558607] [2022-01-18 09:21:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:44,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:44,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:44,089 INFO L87 Difference]: Start difference. First operand 6096 states and 16451 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:45,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:45,731 INFO L93 Difference]: Finished difference Result 21413 states and 56882 transitions. [2022-01-18 09:21:45,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:21:45,731 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:45,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:45,763 INFO L225 Difference]: With dead ends: 21413 [2022-01-18 09:21:45,763 INFO L226 Difference]: Without dead ends: 21413 [2022-01-18 09:21:45,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:21:45,764 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1568 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:45,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 2418 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21413 states. [2022-01-18 09:21:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21413 to 6256. [2022-01-18 09:21:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 2.704509114166933) internal successors, (16914), 6255 states have internal predecessors, (16914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 16914 transitions. [2022-01-18 09:21:45,932 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 16914 transitions. Word has length 130 [2022-01-18 09:21:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:45,932 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 16914 transitions. [2022-01-18 09:21:45,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:45,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 16914 transitions. [2022-01-18 09:21:45,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:45,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:45,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:45,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 09:21:45,940 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:45,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:45,940 INFO L85 PathProgramCache]: Analyzing trace with hash -146202424, now seen corresponding path program 58 times [2022-01-18 09:21:45,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:45,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256129784] [2022-01-18 09:21:45,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:45,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:46,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:46,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256129784] [2022-01-18 09:21:46,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256129784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:46,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:46,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:46,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459071716] [2022-01-18 09:21:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:46,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:46,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:46,258 INFO L87 Difference]: Start difference. First operand 6256 states and 16914 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:47,427 INFO L93 Difference]: Finished difference Result 21321 states and 56610 transitions. [2022-01-18 09:21:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:47,457 INFO L225 Difference]: With dead ends: 21321 [2022-01-18 09:21:47,458 INFO L226 Difference]: Without dead ends: 21321 [2022-01-18 09:21:47,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:47,458 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1581 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:47,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1581 Valid, 2729 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21321 states. [2022-01-18 09:21:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21321 to 6238. [2022-01-18 09:21:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-18 09:21:47,625 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-18 09:21:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:47,626 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-18 09:21:47,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:47,626 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-18 09:21:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:47,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:47,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:47,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 09:21:47,633 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:47,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:47,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1101360708, now seen corresponding path program 59 times [2022-01-18 09:21:47,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:47,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683927321] [2022-01-18 09:21:47,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:47,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:47,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:47,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:47,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683927321] [2022-01-18 09:21:47,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683927321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:47,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:47,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:47,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736312391] [2022-01-18 09:21:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:47,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:47,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:47,961 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:49,515 INFO L93 Difference]: Finished difference Result 18879 states and 50197 transitions. [2022-01-18 09:21:49,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:49,515 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:49,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:49,542 INFO L225 Difference]: With dead ends: 18879 [2022-01-18 09:21:49,542 INFO L226 Difference]: Without dead ends: 18879 [2022-01-18 09:21:49,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:21:49,543 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1360 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:49,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 2692 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:49,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18879 states. [2022-01-18 09:21:49,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18879 to 6202. [2022-01-18 09:21:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.702903225806452) internal successors, (16758), 6201 states have internal predecessors, (16758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16758 transitions. [2022-01-18 09:21:49,693 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16758 transitions. Word has length 130 [2022-01-18 09:21:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:49,693 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16758 transitions. [2022-01-18 09:21:49,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16758 transitions. [2022-01-18 09:21:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:49,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:49,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:49,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 09:21:49,700 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:49,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:49,701 INFO L85 PathProgramCache]: Analyzing trace with hash -208019672, now seen corresponding path program 60 times [2022-01-18 09:21:49,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:49,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503379218] [2022-01-18 09:21:49,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:49,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:50,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:50,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:50,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503379218] [2022-01-18 09:21:50,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503379218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:50,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:50,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:50,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683741593] [2022-01-18 09:21:50,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:50,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:50,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:50,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:50,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:50,088 INFO L87 Difference]: Start difference. First operand 6202 states and 16758 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:51,532 INFO L93 Difference]: Finished difference Result 15905 states and 42338 transitions. [2022-01-18 09:21:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:51,533 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:51,555 INFO L225 Difference]: With dead ends: 15905 [2022-01-18 09:21:51,556 INFO L226 Difference]: Without dead ends: 15905 [2022-01-18 09:21:51,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:51,556 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1481 mSDsluCounter, 3632 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:51,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1481 Valid, 3942 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15905 states. [2022-01-18 09:21:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15905 to 6238. [2022-01-18 09:21:51,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-18 09:21:51,714 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-18 09:21:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:51,714 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-18 09:21:51,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-18 09:21:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:51,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:51,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:51,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 09:21:51,722 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:51,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1831969180, now seen corresponding path program 61 times [2022-01-18 09:21:51,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:51,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418444179] [2022-01-18 09:21:51,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:51,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:52,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:52,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418444179] [2022-01-18 09:21:52,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418444179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:52,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:52,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:52,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424027630] [2022-01-18 09:21:52,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:52,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:52,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:52,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:52,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:52,065 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:53,702 INFO L93 Difference]: Finished difference Result 16855 states and 44464 transitions. [2022-01-18 09:21:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:53,703 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:53,728 INFO L225 Difference]: With dead ends: 16855 [2022-01-18 09:21:53,728 INFO L226 Difference]: Without dead ends: 16855 [2022-01-18 09:21:53,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:21:53,728 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1437 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:53,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 2708 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16855 states. [2022-01-18 09:21:53,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16855 to 6220. [2022-01-18 09:21:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6218 states have (on average 2.703441621100032) internal successors, (16810), 6219 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 16810 transitions. [2022-01-18 09:21:53,868 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 16810 transitions. Word has length 130 [2022-01-18 09:21:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:53,868 INFO L470 AbstractCegarLoop]: Abstraction has 6220 states and 16810 transitions. [2022-01-18 09:21:53,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 16810 transitions. [2022-01-18 09:21:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:53,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:53,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:53,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 09:21:53,876 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:53,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:53,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1045910336, now seen corresponding path program 62 times [2022-01-18 09:21:53,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:53,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724288837] [2022-01-18 09:21:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:53,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:54,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:54,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724288837] [2022-01-18 09:21:54,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724288837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:54,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:54,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:21:54,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620339725] [2022-01-18 09:21:54,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:54,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:21:54,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:54,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:21:54,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:21:54,319 INFO L87 Difference]: Start difference. First operand 6220 states and 16810 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:55,803 INFO L93 Difference]: Finished difference Result 20197 states and 53147 transitions. [2022-01-18 09:21:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:55,803 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:55,831 INFO L225 Difference]: With dead ends: 20197 [2022-01-18 09:21:55,832 INFO L226 Difference]: Without dead ends: 20197 [2022-01-18 09:21:55,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:55,832 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1449 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:55,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 4317 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:21:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20197 states. [2022-01-18 09:21:55,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20197 to 6238. [2022-01-18 09:21:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:55,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-18 09:21:55,995 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-18 09:21:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:55,996 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-18 09:21:55,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-18 09:21:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:56,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:56,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:56,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 09:21:56,003 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:56,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:56,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1550417786, now seen corresponding path program 63 times [2022-01-18 09:21:56,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:56,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328955381] [2022-01-18 09:21:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:56,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:56,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:56,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328955381] [2022-01-18 09:21:56,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328955381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:56,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:56,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:56,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55392463] [2022-01-18 09:21:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:56,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:56,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:56,338 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:57,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:57,930 INFO L93 Difference]: Finished difference Result 17009 states and 44915 transitions. [2022-01-18 09:21:57,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:57,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:57,955 INFO L225 Difference]: With dead ends: 17009 [2022-01-18 09:21:57,955 INFO L226 Difference]: Without dead ends: 17009 [2022-01-18 09:21:57,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:21:57,956 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1294 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:57,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 2550 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:57,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17009 states. [2022-01-18 09:21:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17009 to 6166. [2022-01-18 09:21:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6166 states, 6164 states have (on average 2.7018170019467878) internal successors, (16654), 6165 states have internal predecessors, (16654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6166 states to 6166 states and 16654 transitions. [2022-01-18 09:21:58,090 INFO L78 Accepts]: Start accepts. Automaton has 6166 states and 16654 transitions. Word has length 130 [2022-01-18 09:21:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:58,090 INFO L470 AbstractCegarLoop]: Abstraction has 6166 states and 16654 transitions. [2022-01-18 09:21:58,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:58,090 INFO L276 IsEmpty]: Start isEmpty. Operand 6166 states and 16654 transitions. [2022-01-18 09:21:58,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:58,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:58,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:58,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 09:21:58,098 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:58,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1095689440, now seen corresponding path program 64 times [2022-01-18 09:21:58,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:58,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652029402] [2022-01-18 09:21:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:58,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:58,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:58,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652029402] [2022-01-18 09:21:58,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652029402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:58,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:58,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:58,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081756193] [2022-01-18 09:21:58,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:58,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:58,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:58,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:58,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:58,400 INFO L87 Difference]: Start difference. First operand 6166 states and 16654 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:59,525 INFO L93 Difference]: Finished difference Result 16217 states and 43008 transitions. [2022-01-18 09:21:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:59,529 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:21:59,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:59,552 INFO L225 Difference]: With dead ends: 16217 [2022-01-18 09:21:59,552 INFO L226 Difference]: Without dead ends: 16217 [2022-01-18 09:21:59,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:59,552 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1356 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:59,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 2746 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16217 states. [2022-01-18 09:21:59,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16217 to 6238. [2022-01-18 09:21:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.703976908274535) internal successors, (16862), 6237 states have internal predecessors, (16862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16862 transitions. [2022-01-18 09:21:59,682 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16862 transitions. Word has length 130 [2022-01-18 09:21:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:59,682 INFO L470 AbstractCegarLoop]: Abstraction has 6238 states and 16862 transitions. [2022-01-18 09:21:59,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16862 transitions. [2022-01-18 09:21:59,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:21:59,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:59,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:59,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 09:21:59,690 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:21:59,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:59,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1500638682, now seen corresponding path program 65 times [2022-01-18 09:21:59,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:59,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45915021] [2022-01-18 09:21:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:59,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:59,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:59,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45915021] [2022-01-18 09:21:59,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45915021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:59,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:59,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:59,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289084816] [2022-01-18 09:21:59,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:59,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:59,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:59,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:59,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:59,993 INFO L87 Difference]: Start difference. First operand 6238 states and 16862 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:01,108 INFO L93 Difference]: Finished difference Result 16125 states and 42736 transitions. [2022-01-18 09:22:01,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:01,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:01,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:01,132 INFO L225 Difference]: With dead ends: 16125 [2022-01-18 09:22:01,133 INFO L226 Difference]: Without dead ends: 16125 [2022-01-18 09:22:01,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:01,133 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1298 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:01,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1298 Valid, 2798 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2022-01-18 09:22:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 6220. [2022-01-18 09:22:01,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6218 states have (on average 2.703441621100032) internal successors, (16810), 6219 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:01,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 16810 transitions. [2022-01-18 09:22:01,267 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 16810 transitions. Word has length 130 [2022-01-18 09:22:01,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:01,267 INFO L470 AbstractCegarLoop]: Abstraction has 6220 states and 16810 transitions. [2022-01-18 09:22:01,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 16810 transitions. [2022-01-18 09:22:01,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:01,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:01,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:01,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 09:22:01,275 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:01,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:01,275 INFO L85 PathProgramCache]: Analyzing trace with hash -253075550, now seen corresponding path program 66 times [2022-01-18 09:22:01,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:01,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804543166] [2022-01-18 09:22:01,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:01,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:01,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:01,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804543166] [2022-01-18 09:22:01,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804543166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:01,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:01,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:01,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841918070] [2022-01-18 09:22:01,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:01,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:01,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:01,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:01,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:01,621 INFO L87 Difference]: Start difference. First operand 6220 states and 16810 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:02,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:02,711 INFO L93 Difference]: Finished difference Result 16421 states and 43602 transitions. [2022-01-18 09:22:02,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:02,711 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:02,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:02,734 INFO L225 Difference]: With dead ends: 16421 [2022-01-18 09:22:02,735 INFO L226 Difference]: Without dead ends: 16421 [2022-01-18 09:22:02,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:02,735 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1139 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:02,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 2555 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16421 states. [2022-01-18 09:22:02,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16421 to 6184. [2022-01-18 09:22:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 6182 states have (on average 2.7023616952442575) internal successors, (16706), 6183 states have internal predecessors, (16706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 16706 transitions. [2022-01-18 09:22:02,865 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 16706 transitions. Word has length 130 [2022-01-18 09:22:02,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:02,866 INFO L470 AbstractCegarLoop]: Abstraction has 6184 states and 16706 transitions. [2022-01-18 09:22:02,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 16706 transitions. [2022-01-18 09:22:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:02,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:02,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:02,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 09:22:02,873 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1427992670, now seen corresponding path program 67 times [2022-01-18 09:22:02,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:02,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445192562] [2022-01-18 09:22:02,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:02,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:03,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:03,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445192562] [2022-01-18 09:22:03,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445192562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:03,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:03,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:03,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43680953] [2022-01-18 09:22:03,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:03,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:03,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:03,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:03,205 INFO L87 Difference]: Start difference. First operand 6184 states and 16706 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:04,556 INFO L93 Difference]: Finished difference Result 13215 states and 35193 transitions. [2022-01-18 09:22:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:22:04,556 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:04,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:04,574 INFO L225 Difference]: With dead ends: 13215 [2022-01-18 09:22:04,575 INFO L226 Difference]: Without dead ends: 13215 [2022-01-18 09:22:04,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:22:04,575 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1260 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:04,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 2422 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:04,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13215 states. [2022-01-18 09:22:04,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13215 to 6148. [2022-01-18 09:22:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 6146 states have (on average 2.70126911812561) internal successors, (16602), 6147 states have internal predecessors, (16602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 16602 transitions. [2022-01-18 09:22:04,685 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 16602 transitions. Word has length 130 [2022-01-18 09:22:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:04,685 INFO L470 AbstractCegarLoop]: Abstraction has 6148 states and 16602 transitions. [2022-01-18 09:22:04,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 16602 transitions. [2022-01-18 09:22:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:04,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:04,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:04,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 09:22:04,692 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1636005534, now seen corresponding path program 68 times [2022-01-18 09:22:04,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:04,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883613744] [2022-01-18 09:22:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:04,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:05,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:05,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883613744] [2022-01-18 09:22:05,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883613744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:05,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:05,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:05,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175198019] [2022-01-18 09:22:05,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:05,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:05,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:05,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:05,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:05,018 INFO L87 Difference]: Start difference. First operand 6148 states and 16602 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:06,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:06,694 INFO L93 Difference]: Finished difference Result 20847 states and 55104 transitions. [2022-01-18 09:22:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:22:06,695 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:06,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:06,721 INFO L225 Difference]: With dead ends: 20847 [2022-01-18 09:22:06,721 INFO L226 Difference]: Without dead ends: 20847 [2022-01-18 09:22:06,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:22:06,722 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1541 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:06,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 2530 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:06,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20847 states. [2022-01-18 09:22:06,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20847 to 6310. [2022-01-18 09:22:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 6308 states have (on average 2.706087507926443) internal successors, (17070), 6309 states have internal predecessors, (17070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 17070 transitions. [2022-01-18 09:22:06,866 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 17070 transitions. Word has length 130 [2022-01-18 09:22:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:06,866 INFO L470 AbstractCegarLoop]: Abstraction has 6310 states and 17070 transitions. [2022-01-18 09:22:06,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 17070 transitions. [2022-01-18 09:22:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:06,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:06,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:06,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 09:22:06,874 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:06,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:06,875 INFO L85 PathProgramCache]: Analyzing trace with hash 62633640, now seen corresponding path program 69 times [2022-01-18 09:22:06,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:06,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782287088] [2022-01-18 09:22:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:06,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:07,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:07,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782287088] [2022-01-18 09:22:07,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782287088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:07,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:07,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:07,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462110095] [2022-01-18 09:22:07,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:07,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:07,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:07,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:07,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:07,216 INFO L87 Difference]: Start difference. First operand 6310 states and 17070 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:09,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:09,046 INFO L93 Difference]: Finished difference Result 20755 states and 54832 transitions. [2022-01-18 09:22:09,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:22:09,047 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:09,077 INFO L225 Difference]: With dead ends: 20755 [2022-01-18 09:22:09,077 INFO L226 Difference]: Without dead ends: 20755 [2022-01-18 09:22:09,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:22:09,078 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1360 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:09,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 2583 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:09,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20755 states. [2022-01-18 09:22:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20755 to 6292. [2022-01-18 09:22:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-18 09:22:09,243 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-18 09:22:09,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:09,244 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-18 09:22:09,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-18 09:22:09,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:09,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:09,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:09,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 09:22:09,251 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:09,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1310196772, now seen corresponding path program 70 times [2022-01-18 09:22:09,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:09,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61500518] [2022-01-18 09:22:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:09,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:09,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:09,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:09,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61500518] [2022-01-18 09:22:09,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61500518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:09,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:09,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:09,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914973380] [2022-01-18 09:22:09,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:09,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:09,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:09,589 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:11,368 INFO L93 Difference]: Finished difference Result 18313 states and 48419 transitions. [2022-01-18 09:22:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:11,369 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:11,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:11,395 INFO L225 Difference]: With dead ends: 18313 [2022-01-18 09:22:11,395 INFO L226 Difference]: Without dead ends: 18313 [2022-01-18 09:22:11,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:22:11,396 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1248 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:11,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2824 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:11,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18313 states. [2022-01-18 09:22:11,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18313 to 6256. [2022-01-18 09:22:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 2.704509114166933) internal successors, (16914), 6255 states have internal predecessors, (16914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 16914 transitions. [2022-01-18 09:22:11,559 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 16914 transitions. Word has length 130 [2022-01-18 09:22:11,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:11,559 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 16914 transitions. [2022-01-18 09:22:11,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 16914 transitions. [2022-01-18 09:22:11,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:11,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:11,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:11,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 09:22:11,566 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:11,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:11,567 INFO L85 PathProgramCache]: Analyzing trace with hash 816392, now seen corresponding path program 71 times [2022-01-18 09:22:11,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:11,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744043665] [2022-01-18 09:22:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:11,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:11,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:11,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744043665] [2022-01-18 09:22:11,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744043665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:11,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:11,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:11,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906862841] [2022-01-18 09:22:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:11,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:11,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:11,905 INFO L87 Difference]: Start difference. First operand 6256 states and 16914 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:13,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:13,544 INFO L93 Difference]: Finished difference Result 21007 states and 55606 transitions. [2022-01-18 09:22:13,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:22:13,545 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:13,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:13,574 INFO L225 Difference]: With dead ends: 21007 [2022-01-18 09:22:13,575 INFO L226 Difference]: Without dead ends: 21007 [2022-01-18 09:22:13,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:22:13,575 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1338 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:13,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2616 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21007 states. [2022-01-18 09:22:13,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21007 to 6292. [2022-01-18 09:22:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:13,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-18 09:22:13,736 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-18 09:22:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:13,736 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-18 09:22:13,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-18 09:22:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:13,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:13,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:13,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 09:22:13,744 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1623133116, now seen corresponding path program 72 times [2022-01-18 09:22:13,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:13,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677334727] [2022-01-18 09:22:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:13,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:14,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:14,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677334727] [2022-01-18 09:22:14,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677334727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:14,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:14,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:22:14,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861616627] [2022-01-18 09:22:14,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:14,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:22:14,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:22:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:22:14,378 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:17,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:17,149 INFO L93 Difference]: Finished difference Result 19204 states and 50348 transitions. [2022-01-18 09:22:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:22:17,150 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:17,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:17,177 INFO L225 Difference]: With dead ends: 19204 [2022-01-18 09:22:17,177 INFO L226 Difference]: Without dead ends: 19204 [2022-01-18 09:22:17,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=554, Invalid=1608, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:22:17,178 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1163 mSDsluCounter, 3541 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:17,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 3834 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:22:17,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19204 states. [2022-01-18 09:22:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19204 to 6350. [2022-01-18 09:22:17,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6350 states, 6348 states have (on average 2.7036862003780717) internal successors, (17163), 6349 states have internal predecessors, (17163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6350 states to 6350 states and 17163 transitions. [2022-01-18 09:22:17,339 INFO L78 Accepts]: Start accepts. Automaton has 6350 states and 17163 transitions. Word has length 130 [2022-01-18 09:22:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:17,339 INFO L470 AbstractCegarLoop]: Abstraction has 6350 states and 17163 transitions. [2022-01-18 09:22:17,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 6350 states and 17163 transitions. [2022-01-18 09:22:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:17,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:17,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:17,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 09:22:17,346 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:17,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1254746400, now seen corresponding path program 73 times [2022-01-18 09:22:17,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:17,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946464556] [2022-01-18 09:22:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:17,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:17,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:17,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946464556] [2022-01-18 09:22:17,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946464556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:17,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:17,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:22:17,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309784657] [2022-01-18 09:22:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:17,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:22:17,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:17,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:22:17,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:22:17,911 INFO L87 Difference]: Start difference. First operand 6350 states and 17163 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:20,881 INFO L93 Difference]: Finished difference Result 19347 states and 50631 transitions. [2022-01-18 09:22:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 09:22:20,881 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:20,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:20,907 INFO L225 Difference]: With dead ends: 19347 [2022-01-18 09:22:20,908 INFO L226 Difference]: Without dead ends: 19347 [2022-01-18 09:22:20,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=591, Invalid=1665, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 09:22:20,908 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1233 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 4072 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:20,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 4072 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:20,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19347 states. [2022-01-18 09:22:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19347 to 6360. [2022-01-18 09:22:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6360 states, 6358 states have (on average 2.7033658383139354) internal successors, (17188), 6359 states have internal predecessors, (17188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6360 states to 6360 states and 17188 transitions. [2022-01-18 09:22:21,055 INFO L78 Accepts]: Start accepts. Automaton has 6360 states and 17188 transitions. Word has length 130 [2022-01-18 09:22:21,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:21,056 INFO L470 AbstractCegarLoop]: Abstraction has 6360 states and 17188 transitions. [2022-01-18 09:22:21,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 6360 states and 17188 transitions. [2022-01-18 09:22:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:21,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:21,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:21,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 09:22:21,063 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:21,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:21,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1033682940, now seen corresponding path program 74 times [2022-01-18 09:22:21,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:21,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615224831] [2022-01-18 09:22:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:21,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:21,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:21,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615224831] [2022-01-18 09:22:21,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615224831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:21,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:21,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:21,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583166581] [2022-01-18 09:22:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:21,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:21,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:21,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:21,396 INFO L87 Difference]: Start difference. First operand 6360 states and 17188 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:23,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:23,197 INFO L93 Difference]: Finished difference Result 22043 states and 57931 transitions. [2022-01-18 09:22:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:22:23,198 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:23,226 INFO L225 Difference]: With dead ends: 22043 [2022-01-18 09:22:23,226 INFO L226 Difference]: Without dead ends: 22043 [2022-01-18 09:22:23,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:22:23,227 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1602 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:23,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 2584 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22043 states. [2022-01-18 09:22:23,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22043 to 6340. [2022-01-18 09:22:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6340 states, 6338 states have (on average 2.7029031240138846) internal successors, (17131), 6339 states have internal predecessors, (17131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 17131 transitions. [2022-01-18 09:22:23,375 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 17131 transitions. Word has length 130 [2022-01-18 09:22:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:23,376 INFO L470 AbstractCegarLoop]: Abstraction has 6340 states and 17131 transitions. [2022-01-18 09:22:23,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 17131 transitions. [2022-01-18 09:22:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:23,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:23,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:23,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 09:22:23,384 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:23,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:23,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1196484704, now seen corresponding path program 75 times [2022-01-18 09:22:23,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:23,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258615454] [2022-01-18 09:22:23,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:23,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:23,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:23,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258615454] [2022-01-18 09:22:23,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258615454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:23,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:23,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:23,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896241997] [2022-01-18 09:22:23,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:23,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:23,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:23,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:23,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:23,692 INFO L87 Difference]: Start difference. First operand 6340 states and 17131 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:24,881 INFO L93 Difference]: Finished difference Result 23751 states and 62026 transitions. [2022-01-18 09:22:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:24,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:24,914 INFO L225 Difference]: With dead ends: 23751 [2022-01-18 09:22:24,914 INFO L226 Difference]: Without dead ends: 23751 [2022-01-18 09:22:24,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:24,915 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1322 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:24,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 3037 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:24,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23751 states. [2022-01-18 09:22:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23751 to 6348. [2022-01-18 09:22:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 6346 states have (on average 2.703750393948944) internal successors, (17158), 6347 states have internal predecessors, (17158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 17158 transitions. [2022-01-18 09:22:25,090 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 17158 transitions. Word has length 130 [2022-01-18 09:22:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:25,090 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 17158 transitions. [2022-01-18 09:22:25,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 17158 transitions. [2022-01-18 09:22:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:25,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:25,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:25,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 09:22:25,097 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1399843418, now seen corresponding path program 76 times [2022-01-18 09:22:25,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:25,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251729560] [2022-01-18 09:22:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:25,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:25,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251729560] [2022-01-18 09:22:25,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251729560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:25,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:25,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:25,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666464516] [2022-01-18 09:22:25,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:25,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:25,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:25,437 INFO L87 Difference]: Start difference. First operand 6348 states and 17158 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:27,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:27,204 INFO L93 Difference]: Finished difference Result 20513 states and 53677 transitions. [2022-01-18 09:22:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:22:27,205 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:27,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:27,234 INFO L225 Difference]: With dead ends: 20513 [2022-01-18 09:22:27,234 INFO L226 Difference]: Without dead ends: 20513 [2022-01-18 09:22:27,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:22:27,234 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 1305 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2956 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:27,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 2956 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20513 states. [2022-01-18 09:22:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20513 to 6220. [2022-01-18 09:22:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6220 states, 6218 states have (on average 2.703441621100032) internal successors, (16810), 6219 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6220 states to 6220 states and 16810 transitions. [2022-01-18 09:22:27,410 INFO L78 Accepts]: Start accepts. Automaton has 6220 states and 16810 transitions. Word has length 130 [2022-01-18 09:22:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:27,410 INFO L470 AbstractCegarLoop]: Abstraction has 6220 states and 16810 transitions. [2022-01-18 09:22:27,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:27,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6220 states and 16810 transitions. [2022-01-18 09:22:27,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:27,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:27,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:27,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 09:22:27,418 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:27,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash 217198062, now seen corresponding path program 77 times [2022-01-18 09:22:27,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:27,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730851502] [2022-01-18 09:22:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:27,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:27,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:27,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730851502] [2022-01-18 09:22:27,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730851502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:27,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:27,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:27,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076394414] [2022-01-18 09:22:27,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:27,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:27,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:27,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:27,752 INFO L87 Difference]: Start difference. First operand 6220 states and 16810 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:28,861 INFO L93 Difference]: Finished difference Result 16405 states and 43724 transitions. [2022-01-18 09:22:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:28,861 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:28,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:28,885 INFO L225 Difference]: With dead ends: 16405 [2022-01-18 09:22:28,885 INFO L226 Difference]: Without dead ends: 16405 [2022-01-18 09:22:28,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:28,885 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1413 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:28,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 2456 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16405 states. [2022-01-18 09:22:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16405 to 6292. [2022-01-18 09:22:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-18 09:22:29,019 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-18 09:22:29,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:29,019 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-18 09:22:29,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:29,019 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-18 09:22:29,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:29,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:29,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:29,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 09:22:29,027 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:29,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:29,027 INFO L85 PathProgramCache]: Analyzing trace with hash -232431950, now seen corresponding path program 78 times [2022-01-18 09:22:29,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:29,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793319149] [2022-01-18 09:22:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:29,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:29,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:29,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:29,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793319149] [2022-01-18 09:22:29,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793319149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:29,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:29,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:29,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573843689] [2022-01-18 09:22:29,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:29,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:29,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:29,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:29,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:29,440 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:30,885 INFO L93 Difference]: Finished difference Result 19219 states and 51092 transitions. [2022-01-18 09:22:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:30,885 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:30,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:30,911 INFO L225 Difference]: With dead ends: 19219 [2022-01-18 09:22:30,911 INFO L226 Difference]: Without dead ends: 19219 [2022-01-18 09:22:30,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:22:30,912 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1250 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:30,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 3894 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:30,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19219 states. [2022-01-18 09:22:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19219 to 6310. [2022-01-18 09:22:31,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 6308 states have (on average 2.706087507926443) internal successors, (17070), 6309 states have internal predecessors, (17070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 17070 transitions. [2022-01-18 09:22:31,057 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 17070 transitions. Word has length 130 [2022-01-18 09:22:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:31,057 INFO L470 AbstractCegarLoop]: Abstraction has 6310 states and 17070 transitions. [2022-01-18 09:22:31,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 17070 transitions. [2022-01-18 09:22:31,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:31,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:31,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:31,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 09:22:31,065 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:31,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:31,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1856381458, now seen corresponding path program 79 times [2022-01-18 09:22:31,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:31,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238527941] [2022-01-18 09:22:31,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:31,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:31,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:31,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:31,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238527941] [2022-01-18 09:22:31,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238527941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:31,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:31,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:31,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753509844] [2022-01-18 09:22:31,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:31,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:31,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:31,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:31,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:31,403 INFO L87 Difference]: Start difference. First operand 6310 states and 17070 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:32,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:32,984 INFO L93 Difference]: Finished difference Result 17437 states and 46060 transitions. [2022-01-18 09:22:32,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:32,985 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:32,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:33,009 INFO L225 Difference]: With dead ends: 17437 [2022-01-18 09:22:33,009 INFO L226 Difference]: Without dead ends: 17437 [2022-01-18 09:22:33,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:22:33,010 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1436 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:33,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 2476 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17437 states. [2022-01-18 09:22:33,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17437 to 6256. [2022-01-18 09:22:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6256 states, 6254 states have (on average 2.704509114166933) internal successors, (16914), 6255 states have internal predecessors, (16914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6256 states to 6256 states and 16914 transitions. [2022-01-18 09:22:33,145 INFO L78 Accepts]: Start accepts. Automaton has 6256 states and 16914 transitions. Word has length 130 [2022-01-18 09:22:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:33,145 INFO L470 AbstractCegarLoop]: Abstraction has 6256 states and 16914 transitions. [2022-01-18 09:22:33,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6256 states and 16914 transitions. [2022-01-18 09:22:33,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:33,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:33,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:33,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 09:22:33,152 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:33,153 INFO L85 PathProgramCache]: Analyzing trace with hash 698223544, now seen corresponding path program 80 times [2022-01-18 09:22:33,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:33,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593885453] [2022-01-18 09:22:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:33,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:33,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:33,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593885453] [2022-01-18 09:22:33,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593885453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:33,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:33,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:33,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032865163] [2022-01-18 09:22:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:33,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:33,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:33,537 INFO L87 Difference]: Start difference. First operand 6256 states and 16914 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:34,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:34,982 INFO L93 Difference]: Finished difference Result 18845 states and 49515 transitions. [2022-01-18 09:22:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:34,983 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:35,009 INFO L225 Difference]: With dead ends: 18845 [2022-01-18 09:22:35,009 INFO L226 Difference]: Without dead ends: 18845 [2022-01-18 09:22:35,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:22:35,009 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1221 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:35,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 4140 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:22:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18845 states. [2022-01-18 09:22:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18845 to 6292. [2022-01-18 09:22:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-18 09:22:35,155 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-18 09:22:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:35,155 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-18 09:22:35,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-18 09:22:35,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:35,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:35,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:35,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 09:22:35,162 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:35,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:35,163 INFO L85 PathProgramCache]: Analyzing trace with hash -925725964, now seen corresponding path program 81 times [2022-01-18 09:22:35,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:35,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752353645] [2022-01-18 09:22:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:35,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:35,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752353645] [2022-01-18 09:22:35,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752353645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:35,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:35,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:35,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926118710] [2022-01-18 09:22:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:35,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:35,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:35,543 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:37,009 INFO L93 Difference]: Finished difference Result 19795 states and 51641 transitions. [2022-01-18 09:22:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:37,010 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:37,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:37,040 INFO L225 Difference]: With dead ends: 19795 [2022-01-18 09:22:37,040 INFO L226 Difference]: Without dead ends: 19795 [2022-01-18 09:22:37,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:22:37,041 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1401 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:37,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1401 Valid, 4148 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:22:37,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19795 states. [2022-01-18 09:22:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19795 to 6274. [2022-01-18 09:22:37,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6274 states, 6272 states have (on average 2.7050382653061225) internal successors, (16966), 6273 states have internal predecessors, (16966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:37,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 16966 transitions. [2022-01-18 09:22:37,217 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 16966 transitions. Word has length 130 [2022-01-18 09:22:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:37,218 INFO L470 AbstractCegarLoop]: Abstraction has 6274 states and 16966 transitions. [2022-01-18 09:22:37,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:37,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 16966 transitions. [2022-01-18 09:22:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:37,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:37,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:37,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 09:22:37,225 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:37,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:37,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1952153552, now seen corresponding path program 82 times [2022-01-18 09:22:37,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:37,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330538162] [2022-01-18 09:22:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:37,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:37,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:37,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330538162] [2022-01-18 09:22:37,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330538162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:37,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:37,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:37,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116831533] [2022-01-18 09:22:37,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:37,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:37,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:37,554 INFO L87 Difference]: Start difference. First operand 6274 states and 16966 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:39,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:39,183 INFO L93 Difference]: Finished difference Result 19031 states and 49821 transitions. [2022-01-18 09:22:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:22:39,183 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:39,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:39,209 INFO L225 Difference]: With dead ends: 19031 [2022-01-18 09:22:39,209 INFO L226 Difference]: Without dead ends: 19031 [2022-01-18 09:22:39,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:22:39,210 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1440 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:39,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 2537 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19031 states. [2022-01-18 09:22:39,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19031 to 6292. [2022-01-18 09:22:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 2.7055643879173292) internal successors, (17018), 6291 states have internal predecessors, (17018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:39,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 17018 transitions. [2022-01-18 09:22:39,358 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 17018 transitions. Word has length 130 [2022-01-18 09:22:39,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:39,359 INFO L470 AbstractCegarLoop]: Abstraction has 6292 states and 17018 transitions. [2022-01-18 09:22:39,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:39,359 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 17018 transitions. [2022-01-18 09:22:39,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:39,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:39,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:39,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 09:22:39,366 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash -644174570, now seen corresponding path program 83 times [2022-01-18 09:22:39,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:39,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254532339] [2022-01-18 09:22:39,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:39,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:39,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:39,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254532339] [2022-01-18 09:22:39,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254532339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:39,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:39,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:39,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528290610] [2022-01-18 09:22:39,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:39,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:39,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:39,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:39,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:39,670 INFO L87 Difference]: Start difference. First operand 6292 states and 17018 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:40,793 INFO L93 Difference]: Finished difference Result 15843 states and 41589 transitions. [2022-01-18 09:22:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:40,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:40,817 INFO L225 Difference]: With dead ends: 15843 [2022-01-18 09:22:40,817 INFO L226 Difference]: Without dead ends: 15843 [2022-01-18 09:22:40,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:40,817 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1188 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:40,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 2847 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:40,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15843 states. [2022-01-18 09:22:40,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15843 to 6112. [2022-01-18 09:22:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6112 states, 6110 states have (on average 2.700163666121113) internal successors, (16498), 6111 states have internal predecessors, (16498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 16498 transitions. [2022-01-18 09:22:40,951 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 16498 transitions. Word has length 130 [2022-01-18 09:22:40,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:40,951 INFO L470 AbstractCegarLoop]: Abstraction has 6112 states and 16498 transitions. [2022-01-18 09:22:40,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 16498 transitions. [2022-01-18 09:22:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:40,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:40,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:40,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 09:22:40,958 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:40,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash -81873084, now seen corresponding path program 84 times [2022-01-18 09:22:40,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:40,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86248255] [2022-01-18 09:22:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:40,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:41,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:41,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86248255] [2022-01-18 09:22:41,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86248255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:41,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:41,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:41,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550782014] [2022-01-18 09:22:41,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:41,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:41,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:41,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:41,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:41,382 INFO L87 Difference]: Start difference. First operand 6112 states and 16498 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:42,782 INFO L93 Difference]: Finished difference Result 14921 states and 39481 transitions. [2022-01-18 09:22:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:42,782 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:42,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:42,802 INFO L225 Difference]: With dead ends: 14921 [2022-01-18 09:22:42,803 INFO L226 Difference]: Without dead ends: 14921 [2022-01-18 09:22:42,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:22:42,803 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1336 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:42,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 3707 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:42,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14921 states. [2022-01-18 09:22:42,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14921 to 6306. [2022-01-18 09:22:42,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6306 states, 6304 states have (on average 2.706218274111675) internal successors, (17060), 6305 states have internal predecessors, (17060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6306 states to 6306 states and 17060 transitions. [2022-01-18 09:22:42,919 INFO L78 Accepts]: Start accepts. Automaton has 6306 states and 17060 transitions. Word has length 130 [2022-01-18 09:22:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:42,919 INFO L470 AbstractCegarLoop]: Abstraction has 6306 states and 17060 transitions. [2022-01-18 09:22:42,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6306 states and 17060 transitions. [2022-01-18 09:22:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:42,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:42,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:42,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 09:22:42,926 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1616766090, now seen corresponding path program 85 times [2022-01-18 09:22:42,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:42,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140095702] [2022-01-18 09:22:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:42,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:43,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:43,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:43,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140095702] [2022-01-18 09:22:43,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140095702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:43,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:43,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:43,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412292603] [2022-01-18 09:22:43,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:43,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:43,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:43,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:43,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:43,278 INFO L87 Difference]: Start difference. First operand 6306 states and 17060 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:44,750 INFO L93 Difference]: Finished difference Result 14829 states and 39209 transitions. [2022-01-18 09:22:44,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:22:44,750 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:44,772 INFO L225 Difference]: With dead ends: 14829 [2022-01-18 09:22:44,772 INFO L226 Difference]: Without dead ends: 14829 [2022-01-18 09:22:44,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:22:44,772 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1452 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:44,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 2381 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14829 states. [2022-01-18 09:22:44,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14829 to 6288. [2022-01-18 09:22:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 6286 states have (on average 2.705695195672924) internal successors, (17008), 6287 states have internal predecessors, (17008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 17008 transitions. [2022-01-18 09:22:44,905 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 17008 transitions. Word has length 130 [2022-01-18 09:22:44,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:44,905 INFO L470 AbstractCegarLoop]: Abstraction has 6288 states and 17008 transitions. [2022-01-18 09:22:44,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 17008 transitions. [2022-01-18 09:22:44,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:44,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:44,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:44,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 09:22:44,913 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:44,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1430638074, now seen corresponding path program 86 times [2022-01-18 09:22:44,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:44,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101972048] [2022-01-18 09:22:44,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:44,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:45,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:45,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101972048] [2022-01-18 09:22:45,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101972048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:45,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:45,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:45,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189498550] [2022-01-18 09:22:45,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:45,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:45,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:45,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:45,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:45,232 INFO L87 Difference]: Start difference. First operand 6288 states and 17008 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:46,341 INFO L93 Difference]: Finished difference Result 12387 states and 32796 transitions. [2022-01-18 09:22:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:46,359 INFO L225 Difference]: With dead ends: 12387 [2022-01-18 09:22:46,359 INFO L226 Difference]: Without dead ends: 12387 [2022-01-18 09:22:46,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:46,360 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1261 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:46,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 2674 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12387 states. [2022-01-18 09:22:46,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12387 to 6252. [2022-01-18 09:22:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6252 states, 6250 states have (on average 2.70464) internal successors, (16904), 6251 states have internal predecessors, (16904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6252 states to 6252 states and 16904 transitions. [2022-01-18 09:22:46,466 INFO L78 Accepts]: Start accepts. Automaton has 6252 states and 16904 transitions. Word has length 130 [2022-01-18 09:22:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:46,466 INFO L470 AbstractCegarLoop]: Abstraction has 6252 states and 16904 transitions. [2022-01-18 09:22:46,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 6252 states and 16904 transitions. [2022-01-18 09:22:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:46,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:46,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:46,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 09:22:46,473 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1554948842, now seen corresponding path program 87 times [2022-01-18 09:22:46,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:46,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029916365] [2022-01-18 09:22:46,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:46,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:46,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:46,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029916365] [2022-01-18 09:22:46,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029916365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:46,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:46,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:46,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419532324] [2022-01-18 09:22:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:46,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:46,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:46,883 INFO L87 Difference]: Start difference. First operand 6252 states and 16904 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:48,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:48,262 INFO L93 Difference]: Finished difference Result 15081 states and 39983 transitions. [2022-01-18 09:22:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:48,262 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:48,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:48,283 INFO L225 Difference]: With dead ends: 15081 [2022-01-18 09:22:48,283 INFO L226 Difference]: Without dead ends: 15081 [2022-01-18 09:22:48,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:22:48,284 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1483 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:48,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 3629 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:48,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15081 states. [2022-01-18 09:22:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15081 to 6288. [2022-01-18 09:22:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 6286 states have (on average 2.705695195672924) internal successors, (17008), 6287 states have internal predecessors, (17008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:48,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 17008 transitions. [2022-01-18 09:22:48,406 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 17008 transitions. Word has length 130 [2022-01-18 09:22:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:48,406 INFO L470 AbstractCegarLoop]: Abstraction has 6288 states and 17008 transitions. [2022-01-18 09:22:48,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 17008 transitions. [2022-01-18 09:22:48,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:48,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:48,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:48,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 09:22:48,414 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:48,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:48,414 INFO L85 PathProgramCache]: Analyzing trace with hash -69000666, now seen corresponding path program 88 times [2022-01-18 09:22:48,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:48,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333553039] [2022-01-18 09:22:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:48,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:48,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:48,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333553039] [2022-01-18 09:22:48,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333553039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:48,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:48,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:22:48,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564941435] [2022-01-18 09:22:48,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:48,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:22:48,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:48,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:22:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:22:48,984 INFO L87 Difference]: Start difference. First operand 6288 states and 17008 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:51,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:51,642 INFO L93 Difference]: Finished difference Result 13334 states and 34779 transitions. [2022-01-18 09:22:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:22:51,642 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:51,660 INFO L225 Difference]: With dead ends: 13334 [2022-01-18 09:22:51,660 INFO L226 Difference]: Without dead ends: 13334 [2022-01-18 09:22:51,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=554, Invalid=1608, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:22:51,662 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1209 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:51,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 3577 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:22:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13334 states. [2022-01-18 09:22:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13334 to 6346. [2022-01-18 09:22:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 6344 states have (on average 2.703814627994956) internal successors, (17153), 6345 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:51,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 17153 transitions. [2022-01-18 09:22:51,788 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 17153 transitions. Word has length 130 [2022-01-18 09:22:51,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:51,788 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 17153 transitions. [2022-01-18 09:22:51,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 17153 transitions. [2022-01-18 09:22:51,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:51,796 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:51,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:51,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 09:22:51,797 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:51,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1486088446, now seen corresponding path program 89 times [2022-01-18 09:22:51,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:51,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715096979] [2022-01-18 09:22:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:51,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:52,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:52,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715096979] [2022-01-18 09:22:52,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715096979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:52,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:52,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:52,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352713434] [2022-01-18 09:22:52,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:52,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:52,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:52,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:52,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:52,114 INFO L87 Difference]: Start difference. First operand 6346 states and 17153 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:53,299 INFO L93 Difference]: Finished difference Result 19199 states and 50355 transitions. [2022-01-18 09:22:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:53,300 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:53,327 INFO L225 Difference]: With dead ends: 19199 [2022-01-18 09:22:53,327 INFO L226 Difference]: Without dead ends: 19199 [2022-01-18 09:22:53,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:53,327 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1311 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:53,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 2843 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19199 states. [2022-01-18 09:22:53,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19199 to 6364. [2022-01-18 09:22:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6364 states, 6362 states have (on average 2.7043382584093054) internal successors, (17205), 6363 states have internal predecessors, (17205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:53,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 17205 transitions. [2022-01-18 09:22:53,482 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 17205 transitions. Word has length 130 [2022-01-18 09:22:53,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:53,482 INFO L470 AbstractCegarLoop]: Abstraction has 6364 states and 17205 transitions. [2022-01-18 09:22:53,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 17205 transitions. [2022-01-18 09:22:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:53,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:53,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:53,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 09:22:53,490 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:53,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:53,491 INFO L85 PathProgramCache]: Analyzing trace with hash 212550728, now seen corresponding path program 90 times [2022-01-18 09:22:53,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:53,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241109180] [2022-01-18 09:22:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:53,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:53,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:53,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241109180] [2022-01-18 09:22:53,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241109180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:53,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:53,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:53,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781422358] [2022-01-18 09:22:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:53,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:53,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:53,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:53,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:53,819 INFO L87 Difference]: Start difference. First operand 6364 states and 17205 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:55,425 INFO L93 Difference]: Finished difference Result 16509 states and 43309 transitions. [2022-01-18 09:22:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:55,449 INFO L225 Difference]: With dead ends: 16509 [2022-01-18 09:22:55,449 INFO L226 Difference]: Without dead ends: 16509 [2022-01-18 09:22:55,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:22:55,449 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1305 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:55,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 2782 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:55,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16509 states. [2022-01-18 09:22:55,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16509 to 6346. [2022-01-18 09:22:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 6344 states have (on average 2.703814627994956) internal successors, (17153), 6345 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 17153 transitions. [2022-01-18 09:22:55,588 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 17153 transitions. Word has length 130 [2022-01-18 09:22:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:55,588 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 17153 transitions. [2022-01-18 09:22:55,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:55,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 17153 transitions. [2022-01-18 09:22:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:55,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:55,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:55,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 09:22:55,596 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:55,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:55,596 INFO L85 PathProgramCache]: Analyzing trace with hash 520449510, now seen corresponding path program 91 times [2022-01-18 09:22:55,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:55,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169379910] [2022-01-18 09:22:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:55,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:55,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:55,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:55,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169379910] [2022-01-18 09:22:55,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169379910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:55,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:55,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:22:55,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859149684] [2022-01-18 09:22:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:55,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:22:55,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:55,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:22:55,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:22:55,902 INFO L87 Difference]: Start difference. First operand 6346 states and 17153 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:57,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:57,050 INFO L93 Difference]: Finished difference Result 14435 states and 37600 transitions. [2022-01-18 09:22:57,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:22:57,051 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:57,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:57,071 INFO L225 Difference]: With dead ends: 14435 [2022-01-18 09:22:57,071 INFO L226 Difference]: Without dead ends: 14435 [2022-01-18 09:22:57,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:57,071 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1256 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:57,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1256 Valid, 2763 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:22:57,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2022-01-18 09:22:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 6216. [2022-01-18 09:22:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6216 states, 6214 states have (on average 2.7035725780495654) internal successors, (16800), 6215 states have internal predecessors, (16800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6216 states to 6216 states and 16800 transitions. [2022-01-18 09:22:57,207 INFO L78 Accepts]: Start accepts. Automaton has 6216 states and 16800 transitions. Word has length 130 [2022-01-18 09:22:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:57,207 INFO L470 AbstractCegarLoop]: Abstraction has 6216 states and 16800 transitions. [2022-01-18 09:22:57,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:57,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6216 states and 16800 transitions. [2022-01-18 09:22:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:57,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:57,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:57,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 09:22:57,214 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:57,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1771330512, now seen corresponding path program 92 times [2022-01-18 09:22:57,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:57,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070685518] [2022-01-18 09:22:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:57,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:57,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:57,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070685518] [2022-01-18 09:22:57,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070685518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:57,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:57,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:57,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600720369] [2022-01-18 09:22:57,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:57,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:57,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:57,611 INFO L87 Difference]: Start difference. First operand 6216 states and 16800 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:59,029 INFO L93 Difference]: Finished difference Result 15749 states and 41859 transitions. [2022-01-18 09:22:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:22:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:59,051 INFO L225 Difference]: With dead ends: 15749 [2022-01-18 09:22:59,051 INFO L226 Difference]: Without dead ends: 15749 [2022-01-18 09:22:59,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:22:59,052 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1344 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3881 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:59,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 3881 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15749 states. [2022-01-18 09:22:59,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15749 to 6288. [2022-01-18 09:22:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6288 states, 6286 states have (on average 2.705695195672924) internal successors, (17008), 6287 states have internal predecessors, (17008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 17008 transitions. [2022-01-18 09:22:59,185 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 17008 transitions. Word has length 130 [2022-01-18 09:22:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:59,185 INFO L470 AbstractCegarLoop]: Abstraction has 6288 states and 17008 transitions. [2022-01-18 09:22:59,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 17008 transitions. [2022-01-18 09:22:59,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:22:59,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:59,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:59,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 09:22:59,193 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:59,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1321700500, now seen corresponding path program 93 times [2022-01-18 09:22:59,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:59,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47598188] [2022-01-18 09:22:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:59,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:59,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:59,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47598188] [2022-01-18 09:22:59,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47598188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:59,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:59,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:22:59,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201298411] [2022-01-18 09:22:59,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:59,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:22:59,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:22:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:22:59,595 INFO L87 Difference]: Start difference. First operand 6288 states and 17008 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:01,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:01,024 INFO L93 Difference]: Finished difference Result 18563 states and 49227 transitions. [2022-01-18 09:23:01,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:23:01,025 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:01,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:01,050 INFO L225 Difference]: With dead ends: 18563 [2022-01-18 09:23:01,050 INFO L226 Difference]: Without dead ends: 18563 [2022-01-18 09:23:01,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:23:01,051 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1251 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:01,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 3888 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:23:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18563 states. [2022-01-18 09:23:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18563 to 6306. [2022-01-18 09:23:01,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6306 states, 6304 states have (on average 2.706218274111675) internal successors, (17060), 6305 states have internal predecessors, (17060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6306 states to 6306 states and 17060 transitions. [2022-01-18 09:23:01,200 INFO L78 Accepts]: Start accepts. Automaton has 6306 states and 17060 transitions. Word has length 130 [2022-01-18 09:23:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:01,200 INFO L470 AbstractCegarLoop]: Abstraction has 6306 states and 17060 transitions. [2022-01-18 09:23:01,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6306 states and 17060 transitions. [2022-01-18 09:23:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:01,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:01,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 09:23:01,208 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash -302249008, now seen corresponding path program 94 times [2022-01-18 09:23:01,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:01,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095270583] [2022-01-18 09:23:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:01,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:01,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:01,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095270583] [2022-01-18 09:23:01,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095270583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:01,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:01,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:23:01,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949316922] [2022-01-18 09:23:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:01,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:23:01,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:23:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:23:01,779 INFO L87 Difference]: Start difference. First operand 6306 states and 17060 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:04,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:04,509 INFO L93 Difference]: Finished difference Result 13557 states and 35481 transitions. [2022-01-18 09:23:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:23:04,510 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:04,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:04,528 INFO L225 Difference]: With dead ends: 13557 [2022-01-18 09:23:04,528 INFO L226 Difference]: Without dead ends: 13557 [2022-01-18 09:23:04,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=543, Invalid=1619, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:23:04,529 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1070 mSDsluCounter, 3879 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 4145 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:04,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 4145 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:04,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13557 states. [2022-01-18 09:23:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13557 to 6366. [2022-01-18 09:23:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6366 states, 6364 states have (on average 2.7042740414833437) internal successors, (17210), 6365 states have internal predecessors, (17210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:04,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 17210 transitions. [2022-01-18 09:23:04,647 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 17210 transitions. Word has length 130 [2022-01-18 09:23:04,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:04,647 INFO L470 AbstractCegarLoop]: Abstraction has 6366 states and 17210 transitions. [2022-01-18 09:23:04,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 17210 transitions. [2022-01-18 09:23:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:04,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:04,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:04,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 09:23:04,654 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:04,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2042611302, now seen corresponding path program 95 times [2022-01-18 09:23:04,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:04,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141563339] [2022-01-18 09:23:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:04,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:05,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141563339] [2022-01-18 09:23:05,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141563339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:05,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:05,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:23:05,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762279080] [2022-01-18 09:23:05,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:05,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:23:05,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:05,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:23:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:23:05,213 INFO L87 Difference]: Start difference. First operand 6366 states and 17210 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:07,864 INFO L93 Difference]: Finished difference Result 13986 states and 36394 transitions. [2022-01-18 09:23:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:23:07,865 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:07,885 INFO L225 Difference]: With dead ends: 13986 [2022-01-18 09:23:07,885 INFO L226 Difference]: Without dead ends: 13986 [2022-01-18 09:23:07,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=543, Invalid=1619, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:23:07,886 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1297 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:07,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1297 Valid, 3869 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-01-18 09:23:08,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 6378. [2022-01-18 09:23:08,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6376 states have (on average 2.7038895859473024) internal successors, (17240), 6377 states have internal predecessors, (17240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:08,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 17240 transitions. [2022-01-18 09:23:08,018 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 17240 transitions. Word has length 130 [2022-01-18 09:23:08,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:08,018 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 17240 transitions. [2022-01-18 09:23:08,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 17240 transitions. [2022-01-18 09:23:08,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:08,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:08,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:08,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 09:23:08,027 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash -788681294, now seen corresponding path program 96 times [2022-01-18 09:23:08,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:08,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821103376] [2022-01-18 09:23:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:08,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:08,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:08,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821103376] [2022-01-18 09:23:08,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821103376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:08,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:08,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:08,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166058661] [2022-01-18 09:23:08,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:08,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:08,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:08,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:08,358 INFO L87 Difference]: Start difference. First operand 6378 states and 17240 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:09,517 INFO L93 Difference]: Finished difference Result 19963 states and 52476 transitions. [2022-01-18 09:23:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:09,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:09,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:09,546 INFO L225 Difference]: With dead ends: 19963 [2022-01-18 09:23:09,546 INFO L226 Difference]: Without dead ends: 19963 [2022-01-18 09:23:09,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:09,546 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1437 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:09,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 2836 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19963 states. [2022-01-18 09:23:09,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19963 to 6414. [2022-01-18 09:23:09,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 6412 states have (on average 2.7049282595134123) internal successors, (17344), 6413 states have internal predecessors, (17344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 17344 transitions. [2022-01-18 09:23:09,696 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 17344 transitions. Word has length 130 [2022-01-18 09:23:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:09,697 INFO L470 AbstractCegarLoop]: Abstraction has 6414 states and 17344 transitions. [2022-01-18 09:23:09,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 17344 transitions. [2022-01-18 09:23:09,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:09,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:09,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:09,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 09:23:09,704 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash 909957880, now seen corresponding path program 97 times [2022-01-18 09:23:09,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:09,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930465121] [2022-01-18 09:23:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:09,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:10,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:10,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930465121] [2022-01-18 09:23:10,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930465121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:10,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:10,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:23:10,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956848457] [2022-01-18 09:23:10,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:10,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:23:10,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:10,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:23:10,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:23:10,097 INFO L87 Difference]: Start difference. First operand 6414 states and 17344 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:11,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:11,679 INFO L93 Difference]: Finished difference Result 17273 states and 45430 transitions. [2022-01-18 09:23:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:23:11,680 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:11,703 INFO L225 Difference]: With dead ends: 17273 [2022-01-18 09:23:11,703 INFO L226 Difference]: Without dead ends: 17273 [2022-01-18 09:23:11,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:23:11,704 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1264 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:11,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 3978 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:23:11,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17273 states. [2022-01-18 09:23:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17273 to 6396. [2022-01-18 09:23:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6396 states, 6394 states have (on average 2.7044103847356897) internal successors, (17292), 6395 states have internal predecessors, (17292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6396 states to 6396 states and 17292 transitions. [2022-01-18 09:23:11,835 INFO L78 Accepts]: Start accepts. Automaton has 6396 states and 17292 transitions. Word has length 130 [2022-01-18 09:23:11,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:11,835 INFO L470 AbstractCegarLoop]: Abstraction has 6396 states and 17292 transitions. [2022-01-18 09:23:11,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:11,836 INFO L276 IsEmpty]: Start isEmpty. Operand 6396 states and 17292 transitions. [2022-01-18 09:23:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:11,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:11,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:11,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 09:23:11,843 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:11,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:11,843 INFO L85 PathProgramCache]: Analyzing trace with hash 790837264, now seen corresponding path program 98 times [2022-01-18 09:23:11,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:11,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324978400] [2022-01-18 09:23:11,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:11,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:12,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:12,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324978400] [2022-01-18 09:23:12,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324978400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:12,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:12,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:23:12,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985334535] [2022-01-18 09:23:12,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:12,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:23:12,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:23:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:23:12,230 INFO L87 Difference]: Start difference. First operand 6396 states and 17292 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:13,673 INFO L93 Difference]: Finished difference Result 16753 states and 44060 transitions. [2022-01-18 09:23:13,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:23:13,673 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:13,694 INFO L225 Difference]: With dead ends: 16753 [2022-01-18 09:23:13,694 INFO L226 Difference]: Without dead ends: 16753 [2022-01-18 09:23:13,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:23:13,695 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1367 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:13,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 3888 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:23:13,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16753 states. [2022-01-18 09:23:13,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16753 to 6336. [2022-01-18 09:23:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6334 states have (on average 2.7030312598673825) internal successors, (17121), 6335 states have internal predecessors, (17121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 17121 transitions. [2022-01-18 09:23:13,827 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 17121 transitions. Word has length 130 [2022-01-18 09:23:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:13,827 INFO L470 AbstractCegarLoop]: Abstraction has 6336 states and 17121 transitions. [2022-01-18 09:23:13,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 17121 transitions. [2022-01-18 09:23:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:13,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:13,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:13,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 09:23:13,834 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:13,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:13,834 INFO L85 PathProgramCache]: Analyzing trace with hash 446243418, now seen corresponding path program 99 times [2022-01-18 09:23:13,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:13,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499756676] [2022-01-18 09:23:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:13,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:14,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:14,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499756676] [2022-01-18 09:23:14,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499756676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:14,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:14,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:14,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828612318] [2022-01-18 09:23:14,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:14,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:14,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:14,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:14,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:14,157 INFO L87 Difference]: Start difference. First operand 6336 states and 17121 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:15,337 INFO L93 Difference]: Finished difference Result 18481 states and 48259 transitions. [2022-01-18 09:23:15,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:15,338 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:15,364 INFO L225 Difference]: With dead ends: 18481 [2022-01-18 09:23:15,364 INFO L226 Difference]: Without dead ends: 18481 [2022-01-18 09:23:15,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:15,365 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1362 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:15,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1362 Valid, 2606 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:15,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18481 states. [2022-01-18 09:23:15,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18481 to 6346. [2022-01-18 09:23:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 6344 states have (on average 2.703814627994956) internal successors, (17153), 6345 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 17153 transitions. [2022-01-18 09:23:15,523 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 17153 transitions. Word has length 130 [2022-01-18 09:23:15,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:15,523 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 17153 transitions. [2022-01-18 09:23:15,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 17153 transitions. [2022-01-18 09:23:15,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:15,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:15,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:15,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 09:23:15,531 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:15,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:15,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1177706090, now seen corresponding path program 100 times [2022-01-18 09:23:15,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:15,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203318905] [2022-01-18 09:23:15,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:15,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:16,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:16,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203318905] [2022-01-18 09:23:16,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203318905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:16,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:16,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:23:16,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740391486] [2022-01-18 09:23:16,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:16,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:23:16,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:16,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:23:16,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:23:16,090 INFO L87 Difference]: Start difference. First operand 6346 states and 17153 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:18,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:18,860 INFO L93 Difference]: Finished difference Result 16356 states and 42801 transitions. [2022-01-18 09:23:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:23:18,860 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:18,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:18,880 INFO L225 Difference]: With dead ends: 16356 [2022-01-18 09:23:18,881 INFO L226 Difference]: Without dead ends: 16356 [2022-01-18 09:23:18,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=554, Invalid=1608, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:23:18,881 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1179 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:18,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 3865 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:18,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2022-01-18 09:23:18,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 6342. [2022-01-18 09:23:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6342 states, 6340 states have (on average 2.703943217665615) internal successors, (17143), 6341 states have internal predecessors, (17143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6342 states to 6342 states and 17143 transitions. [2022-01-18 09:23:18,998 INFO L78 Accepts]: Start accepts. Automaton has 6342 states and 17143 transitions. Word has length 130 [2022-01-18 09:23:18,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:18,998 INFO L470 AbstractCegarLoop]: Abstraction has 6342 states and 17143 transitions. [2022-01-18 09:23:18,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:18,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6342 states and 17143 transitions. [2022-01-18 09:23:19,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:19,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:19,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:19,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 09:23:19,006 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:19,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:19,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2133481258, now seen corresponding path program 101 times [2022-01-18 09:23:19,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:19,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034315465] [2022-01-18 09:23:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:19,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:19,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:19,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034315465] [2022-01-18 09:23:19,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034315465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:19,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:19,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:19,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3233252] [2022-01-18 09:23:19,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:19,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:19,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:19,312 INFO L87 Difference]: Start difference. First operand 6342 states and 17143 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:20,474 INFO L93 Difference]: Finished difference Result 17875 states and 46033 transitions. [2022-01-18 09:23:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:20,474 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:20,498 INFO L225 Difference]: With dead ends: 17875 [2022-01-18 09:23:20,498 INFO L226 Difference]: Without dead ends: 17875 [2022-01-18 09:23:20,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:20,499 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1513 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:20,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 2872 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17875 states. [2022-01-18 09:23:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17875 to 6144. [2022-01-18 09:23:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6144 states, 6142 states have (on average 2.701400195376099) internal successors, (16592), 6143 states have internal predecessors, (16592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:20,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6144 states to 6144 states and 16592 transitions. [2022-01-18 09:23:20,636 INFO L78 Accepts]: Start accepts. Automaton has 6144 states and 16592 transitions. Word has length 130 [2022-01-18 09:23:20,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:20,636 INFO L470 AbstractCegarLoop]: Abstraction has 6144 states and 16592 transitions. [2022-01-18 09:23:20,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:20,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6144 states and 16592 transitions. [2022-01-18 09:23:20,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:20,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:20,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:20,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 09:23:20,642 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:20,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:20,643 INFO L85 PathProgramCache]: Analyzing trace with hash 746797488, now seen corresponding path program 102 times [2022-01-18 09:23:20,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:20,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156311453] [2022-01-18 09:23:20,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:20,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:20,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:20,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156311453] [2022-01-18 09:23:20,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156311453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:20,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:20,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:20,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249600594] [2022-01-18 09:23:20,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:20,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:20,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:20,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:20,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:20,957 INFO L87 Difference]: Start difference. First operand 6144 states and 16592 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:21,815 INFO L93 Difference]: Finished difference Result 7460 states and 19453 transitions. [2022-01-18 09:23:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:21,816 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:21,825 INFO L225 Difference]: With dead ends: 7460 [2022-01-18 09:23:21,825 INFO L226 Difference]: Without dead ends: 7460 [2022-01-18 09:23:21,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:23:21,826 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 778 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:21,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 2371 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7460 states. [2022-01-18 09:23:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7460 to 6185. [2022-01-18 09:23:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6185 states, 6183 states have (on average 2.6993368914766296) internal successors, (16690), 6184 states have internal predecessors, (16690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:21,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6185 states to 6185 states and 16690 transitions. [2022-01-18 09:23:21,911 INFO L78 Accepts]: Start accepts. Automaton has 6185 states and 16690 transitions. Word has length 130 [2022-01-18 09:23:21,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:21,911 INFO L470 AbstractCegarLoop]: Abstraction has 6185 states and 16690 transitions. [2022-01-18 09:23:21,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:21,911 INFO L276 IsEmpty]: Start isEmpty. Operand 6185 states and 16690 transitions. [2022-01-18 09:23:21,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:21,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:21,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:21,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 09:23:21,918 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:21,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -202181970, now seen corresponding path program 103 times [2022-01-18 09:23:21,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:21,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353080498] [2022-01-18 09:23:21,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:21,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:22,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:22,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353080498] [2022-01-18 09:23:22,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353080498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:22,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:22,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:22,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838584872] [2022-01-18 09:23:22,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:22,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:22,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:22,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:22,270 INFO L87 Difference]: Start difference. First operand 6185 states and 16690 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:23,584 INFO L93 Difference]: Finished difference Result 10563 states and 28362 transitions. [2022-01-18 09:23:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:23:23,584 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:23,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:23,598 INFO L225 Difference]: With dead ends: 10563 [2022-01-18 09:23:23,598 INFO L226 Difference]: Without dead ends: 10563 [2022-01-18 09:23:23,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:23:23,598 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 1143 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:23,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2279 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2022-01-18 09:23:23,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 6329. [2022-01-18 09:23:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 6327 states have (on average 2.703651019440493) internal successors, (17106), 6328 states have internal predecessors, (17106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 17106 transitions. [2022-01-18 09:23:23,697 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 17106 transitions. Word has length 130 [2022-01-18 09:23:23,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:23,697 INFO L470 AbstractCegarLoop]: Abstraction has 6329 states and 17106 transitions. [2022-01-18 09:23:23,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 17106 transitions. [2022-01-18 09:23:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:23,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:23,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:23,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 09:23:23,705 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:23,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:23,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1730958194, now seen corresponding path program 104 times [2022-01-18 09:23:23,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:23,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907166253] [2022-01-18 09:23:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:23,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:24,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:24,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907166253] [2022-01-18 09:23:24,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907166253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:24,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:24,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:24,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287484326] [2022-01-18 09:23:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:24,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:24,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:24,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:24,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:24,020 INFO L87 Difference]: Start difference. First operand 6329 states and 17106 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:25,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:25,121 INFO L93 Difference]: Finished difference Result 13865 states and 37086 transitions. [2022-01-18 09:23:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:25,121 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:25,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:25,141 INFO L225 Difference]: With dead ends: 13865 [2022-01-18 09:23:25,141 INFO L226 Difference]: Without dead ends: 13865 [2022-01-18 09:23:25,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:25,142 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1121 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:25,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 2382 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2022-01-18 09:23:25,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 6365. [2022-01-18 09:23:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6365 states, 6363 states have (on average 2.7046990413327046) internal successors, (17210), 6364 states have internal predecessors, (17210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6365 states to 6365 states and 17210 transitions. [2022-01-18 09:23:25,260 INFO L78 Accepts]: Start accepts. Automaton has 6365 states and 17210 transitions. Word has length 130 [2022-01-18 09:23:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:25,260 INFO L470 AbstractCegarLoop]: Abstraction has 6365 states and 17210 transitions. [2022-01-18 09:23:25,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:25,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6365 states and 17210 transitions. [2022-01-18 09:23:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:25,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:25,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:25,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 09:23:25,268 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:25,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash 716419954, now seen corresponding path program 105 times [2022-01-18 09:23:25,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:25,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655827811] [2022-01-18 09:23:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:25,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:25,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:25,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655827811] [2022-01-18 09:23:25,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655827811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:25,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:25,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:25,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960180233] [2022-01-18 09:23:25,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:25,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:25,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:25,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:25,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:25,633 INFO L87 Difference]: Start difference. First operand 6365 states and 17210 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:27,044 INFO L93 Difference]: Finished difference Result 13541 states and 36150 transitions. [2022-01-18 09:23:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:23:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:27,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:27,063 INFO L225 Difference]: With dead ends: 13541 [2022-01-18 09:23:27,063 INFO L226 Difference]: Without dead ends: 13541 [2022-01-18 09:23:27,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:23:27,063 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1223 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:27,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1223 Valid, 2317 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2022-01-18 09:23:27,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 6383. [2022-01-18 09:23:27,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 6381 states have (on average 2.705218617771509) internal successors, (17262), 6382 states have internal predecessors, (17262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 17262 transitions. [2022-01-18 09:23:27,174 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 17262 transitions. Word has length 130 [2022-01-18 09:23:27,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:27,174 INFO L470 AbstractCegarLoop]: Abstraction has 6383 states and 17262 transitions. [2022-01-18 09:23:27,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 17262 transitions. [2022-01-18 09:23:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:27,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:27,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:27,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 09:23:27,182 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:27,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:27,182 INFO L85 PathProgramCache]: Analyzing trace with hash -907529554, now seen corresponding path program 106 times [2022-01-18 09:23:27,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:27,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401595616] [2022-01-18 09:23:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:27,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:27,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:27,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401595616] [2022-01-18 09:23:27,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401595616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:27,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:27,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:27,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152399567] [2022-01-18 09:23:27,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:27,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:27,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:27,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:27,493 INFO L87 Difference]: Start difference. First operand 6383 states and 17262 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:28,606 INFO L93 Difference]: Finished difference Result 11759 states and 31118 transitions. [2022-01-18 09:23:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:28,606 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:28,622 INFO L225 Difference]: With dead ends: 11759 [2022-01-18 09:23:28,622 INFO L226 Difference]: Without dead ends: 11759 [2022-01-18 09:23:28,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:28,623 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1303 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:28,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 2306 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11759 states. [2022-01-18 09:23:28,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11759 to 6329. [2022-01-18 09:23:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 6327 states have (on average 2.703651019440493) internal successors, (17106), 6328 states have internal predecessors, (17106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 17106 transitions. [2022-01-18 09:23:28,738 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 17106 transitions. Word has length 130 [2022-01-18 09:23:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:28,738 INFO L470 AbstractCegarLoop]: Abstraction has 6329 states and 17106 transitions. [2022-01-18 09:23:28,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 17106 transitions. [2022-01-18 09:23:28,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:28,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:28,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:28,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 09:23:28,746 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:28,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:28,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1381776708, now seen corresponding path program 107 times [2022-01-18 09:23:28,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:28,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590328010] [2022-01-18 09:23:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:28,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:29,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:29,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590328010] [2022-01-18 09:23:29,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590328010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:29,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:29,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:29,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763309790] [2022-01-18 09:23:29,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:29,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:29,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:29,091 INFO L87 Difference]: Start difference. First operand 6329 states and 17106 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:30,580 INFO L93 Difference]: Finished difference Result 13403 states and 35201 transitions. [2022-01-18 09:23:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:30,598 INFO L225 Difference]: With dead ends: 13403 [2022-01-18 09:23:30,598 INFO L226 Difference]: Without dead ends: 13403 [2022-01-18 09:23:30,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:23:30,599 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1178 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:30,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2516 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13403 states. [2022-01-18 09:23:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13403 to 6401. [2022-01-18 09:23:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6399 states have (on average 2.705735271136115) internal successors, (17314), 6400 states have internal predecessors, (17314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:30,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 17314 transitions. [2022-01-18 09:23:30,699 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 17314 transitions. Word has length 130 [2022-01-18 09:23:30,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:30,700 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 17314 transitions. [2022-01-18 09:23:30,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:30,700 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 17314 transitions. [2022-01-18 09:23:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:30,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:30,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:30,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 09:23:30,706 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:30,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1898652348, now seen corresponding path program 108 times [2022-01-18 09:23:30,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:30,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188271689] [2022-01-18 09:23:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:30,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:31,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:31,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188271689] [2022-01-18 09:23:31,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188271689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:31,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:31,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:31,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879949572] [2022-01-18 09:23:31,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:31,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:31,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:31,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:31,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:31,012 INFO L87 Difference]: Start difference. First operand 6401 states and 17314 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:32,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:32,154 INFO L93 Difference]: Finished difference Result 16217 states and 42569 transitions. [2022-01-18 09:23:32,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:32,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:32,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:32,175 INFO L225 Difference]: With dead ends: 16217 [2022-01-18 09:23:32,175 INFO L226 Difference]: Without dead ends: 16217 [2022-01-18 09:23:32,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:32,176 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1307 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:32,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 2756 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16217 states. [2022-01-18 09:23:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16217 to 6419. [2022-01-18 09:23:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6419 states, 6417 states have (on average 2.706249026024622) internal successors, (17366), 6418 states have internal predecessors, (17366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6419 states to 6419 states and 17366 transitions. [2022-01-18 09:23:32,305 INFO L78 Accepts]: Start accepts. Automaton has 6419 states and 17366 transitions. Word has length 130 [2022-01-18 09:23:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:32,306 INFO L470 AbstractCegarLoop]: Abstraction has 6419 states and 17366 transitions. [2022-01-18 09:23:32,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:32,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6419 states and 17366 transitions. [2022-01-18 09:23:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:32,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:32,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:32,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 09:23:32,314 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:32,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash 274702840, now seen corresponding path program 109 times [2022-01-18 09:23:32,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:32,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336837196] [2022-01-18 09:23:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:32,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:32,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336837196] [2022-01-18 09:23:32,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336837196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:32,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:32,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:32,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559105782] [2022-01-18 09:23:32,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:32,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:32,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:32,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:32,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:32,656 INFO L87 Difference]: Start difference. First operand 6419 states and 17366 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:33,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:33,812 INFO L93 Difference]: Finished difference Result 14435 states and 37537 transitions. [2022-01-18 09:23:33,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:33,812 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:33,834 INFO L225 Difference]: With dead ends: 14435 [2022-01-18 09:23:33,834 INFO L226 Difference]: Without dead ends: 14435 [2022-01-18 09:23:33,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:33,835 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1219 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:33,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 2806 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:33,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14435 states. [2022-01-18 09:23:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14435 to 6365. [2022-01-18 09:23:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6365 states, 6363 states have (on average 2.7046990413327046) internal successors, (17210), 6364 states have internal predecessors, (17210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6365 states to 6365 states and 17210 transitions. [2022-01-18 09:23:33,966 INFO L78 Accepts]: Start accepts. Automaton has 6365 states and 17210 transitions. Word has length 130 [2022-01-18 09:23:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:33,966 INFO L470 AbstractCegarLoop]: Abstraction has 6365 states and 17210 transitions. [2022-01-18 09:23:33,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:33,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6365 states and 17210 transitions. [2022-01-18 09:23:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:33,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:33,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:33,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 09:23:33,974 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:33,974 INFO L85 PathProgramCache]: Analyzing trace with hash 717130074, now seen corresponding path program 110 times [2022-01-18 09:23:33,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:33,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127597644] [2022-01-18 09:23:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:33,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:34,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:34,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127597644] [2022-01-18 09:23:34,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127597644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:34,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:34,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:34,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603821746] [2022-01-18 09:23:34,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:34,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:34,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:34,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:34,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:34,293 INFO L87 Difference]: Start difference. First operand 6365 states and 17210 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:35,397 INFO L93 Difference]: Finished difference Result 12915 states and 33845 transitions. [2022-01-18 09:23:35,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:35,397 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:35,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:35,416 INFO L225 Difference]: With dead ends: 12915 [2022-01-18 09:23:35,416 INFO L226 Difference]: Without dead ends: 12915 [2022-01-18 09:23:35,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:35,416 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1375 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:35,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 2441 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:35,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12915 states. [2022-01-18 09:23:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12915 to 6401. [2022-01-18 09:23:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6399 states have (on average 2.705735271136115) internal successors, (17314), 6400 states have internal predecessors, (17314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 17314 transitions. [2022-01-18 09:23:35,531 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 17314 transitions. Word has length 130 [2022-01-18 09:23:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:35,532 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 17314 transitions. [2022-01-18 09:23:35,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 17314 transitions. [2022-01-18 09:23:35,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:35,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:35,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:35,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 09:23:35,539 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:35,540 INFO L85 PathProgramCache]: Analyzing trace with hash -906819434, now seen corresponding path program 111 times [2022-01-18 09:23:35,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:35,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694478953] [2022-01-18 09:23:35,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:35,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:35,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:35,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:35,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694478953] [2022-01-18 09:23:35,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694478953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:35,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:35,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:35,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137362744] [2022-01-18 09:23:35,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:35,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:35,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:35,848 INFO L87 Difference]: Start difference. First operand 6401 states and 17314 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:37,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:37,008 INFO L93 Difference]: Finished difference Result 13865 states and 35971 transitions. [2022-01-18 09:23:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:37,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:37,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:37,030 INFO L225 Difference]: With dead ends: 13865 [2022-01-18 09:23:37,030 INFO L226 Difference]: Without dead ends: 13865 [2022-01-18 09:23:37,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:37,031 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1338 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:37,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2739 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2022-01-18 09:23:37,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 6383. [2022-01-18 09:23:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6383 states, 6381 states have (on average 2.705218617771509) internal successors, (17262), 6382 states have internal predecessors, (17262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:37,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6383 states to 6383 states and 17262 transitions. [2022-01-18 09:23:37,201 INFO L78 Accepts]: Start accepts. Automaton has 6383 states and 17262 transitions. Word has length 130 [2022-01-18 09:23:37,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:37,202 INFO L470 AbstractCegarLoop]: Abstraction has 6383 states and 17262 transitions. [2022-01-18 09:23:37,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 6383 states and 17262 transitions. [2022-01-18 09:23:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:37,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:37,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:37,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 09:23:37,209 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:37,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1971060082, now seen corresponding path program 112 times [2022-01-18 09:23:37,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:37,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100237038] [2022-01-18 09:23:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:37,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:37,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:37,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100237038] [2022-01-18 09:23:37,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100237038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:37,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:37,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:37,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703957786] [2022-01-18 09:23:37,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:37,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:37,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:37,540 INFO L87 Difference]: Start difference. First operand 6383 states and 17262 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:39,021 INFO L93 Difference]: Finished difference Result 13101 states and 34151 transitions. [2022-01-18 09:23:39,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:39,022 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:39,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:39,041 INFO L225 Difference]: With dead ends: 13101 [2022-01-18 09:23:39,041 INFO L226 Difference]: Without dead ends: 13101 [2022-01-18 09:23:39,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:23:39,042 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1386 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:39,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1386 Valid, 2361 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13101 states. [2022-01-18 09:23:39,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13101 to 6401. [2022-01-18 09:23:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6399 states have (on average 2.705735271136115) internal successors, (17314), 6400 states have internal predecessors, (17314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 17314 transitions. [2022-01-18 09:23:39,164 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 17314 transitions. Word has length 130 [2022-01-18 09:23:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:39,164 INFO L470 AbstractCegarLoop]: Abstraction has 6401 states and 17314 transitions. [2022-01-18 09:23:39,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:39,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 17314 transitions. [2022-01-18 09:23:39,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:39,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:39,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:39,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 09:23:39,171 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash -625268040, now seen corresponding path program 113 times [2022-01-18 09:23:39,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:39,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936047566] [2022-01-18 09:23:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:39,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:39,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:39,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:39,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936047566] [2022-01-18 09:23:39,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936047566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:39,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:39,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:39,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575578860] [2022-01-18 09:23:39,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:39,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:39,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:39,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:39,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:39,472 INFO L87 Difference]: Start difference. First operand 6401 states and 17314 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:40,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:40,547 INFO L93 Difference]: Finished difference Result 9913 states and 25919 transitions. [2022-01-18 09:23:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:40,548 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:40,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:40,560 INFO L225 Difference]: With dead ends: 9913 [2022-01-18 09:23:40,561 INFO L226 Difference]: Without dead ends: 9913 [2022-01-18 09:23:40,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:40,561 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1121 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:40,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 2689 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2022-01-18 09:23:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 6329. [2022-01-18 09:23:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6329 states, 6327 states have (on average 2.703651019440493) internal successors, (17106), 6328 states have internal predecessors, (17106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:40,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6329 states to 6329 states and 17106 transitions. [2022-01-18 09:23:40,658 INFO L78 Accepts]: Start accepts. Automaton has 6329 states and 17106 transitions. Word has length 130 [2022-01-18 09:23:40,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:40,658 INFO L470 AbstractCegarLoop]: Abstraction has 6329 states and 17106 transitions. [2022-01-18 09:23:40,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 6329 states and 17106 transitions. [2022-01-18 09:23:40,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:40,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:40,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:40,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 09:23:40,666 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:40,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash 183541638, now seen corresponding path program 114 times [2022-01-18 09:23:40,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:40,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052843736] [2022-01-18 09:23:40,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:40,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:41,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:41,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052843736] [2022-01-18 09:23:41,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052843736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:41,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:41,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:41,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718442813] [2022-01-18 09:23:41,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:41,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:41,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:41,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:41,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:41,002 INFO L87 Difference]: Start difference. First operand 6329 states and 17106 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:42,685 INFO L93 Difference]: Finished difference Result 21972 states and 58425 transitions. [2022-01-18 09:23:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:23:42,686 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:42,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:42,714 INFO L225 Difference]: With dead ends: 21972 [2022-01-18 09:23:42,714 INFO L226 Difference]: Without dead ends: 21972 [2022-01-18 09:23:42,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:23:42,715 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1872 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:42,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1872 Valid, 2424 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:42,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21972 states. [2022-01-18 09:23:42,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21972 to 6507. [2022-01-18 09:23:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-18 09:23:42,873 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-18 09:23:42,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:42,873 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-18 09:23:42,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:42,873 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-18 09:23:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:42,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:42,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:42,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 09:23:42,881 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:42,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1882180812, now seen corresponding path program 115 times [2022-01-18 09:23:42,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:42,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77982831] [2022-01-18 09:23:42,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:42,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:43,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:43,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77982831] [2022-01-18 09:23:43,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77982831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:43,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:43,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:43,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813258876] [2022-01-18 09:23:43,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:43,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:43,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:43,182 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:44,286 INFO L93 Difference]: Finished difference Result 21880 states and 58153 transitions. [2022-01-18 09:23:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:44,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:44,317 INFO L225 Difference]: With dead ends: 21880 [2022-01-18 09:23:44,317 INFO L226 Difference]: Without dead ends: 21880 [2022-01-18 09:23:44,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:44,317 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1651 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:44,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1651 Valid, 2514 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21880 states. [2022-01-18 09:23:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21880 to 6489. [2022-01-18 09:23:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:23:44,483 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:23:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:44,483 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:23:44,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:23:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:44,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:44,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:44,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 09:23:44,491 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1165223352, now seen corresponding path program 116 times [2022-01-18 09:23:44,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:44,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429033557] [2022-01-18 09:23:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:44,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:44,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:44,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429033557] [2022-01-18 09:23:44,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429033557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:44,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:44,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:44,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121708314] [2022-01-18 09:23:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:44,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:44,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:44,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:44,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:44,799 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:45,935 INFO L93 Difference]: Finished difference Result 19438 states and 51740 transitions. [2022-01-18 09:23:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:45,964 INFO L225 Difference]: With dead ends: 19438 [2022-01-18 09:23:45,964 INFO L226 Difference]: Without dead ends: 19438 [2022-01-18 09:23:45,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:45,965 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1462 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:45,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1462 Valid, 2776 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19438 states. [2022-01-18 09:23:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19438 to 6453. [2022-01-18 09:23:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 6451 states have (on average 2.707332196558673) internal successors, (17465), 6452 states have internal predecessors, (17465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 17465 transitions. [2022-01-18 09:23:46,125 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 17465 transitions. Word has length 130 [2022-01-18 09:23:46,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:46,125 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 17465 transitions. [2022-01-18 09:23:46,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 17465 transitions. [2022-01-18 09:23:46,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:46,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:46,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:46,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 09:23:46,134 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:46,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:46,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1820363564, now seen corresponding path program 117 times [2022-01-18 09:23:46,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:46,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73289068] [2022-01-18 09:23:46,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:46,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:46,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:46,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73289068] [2022-01-18 09:23:46,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73289068] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:46,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:46,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:46,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518372113] [2022-01-18 09:23:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:46,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:46,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:46,487 INFO L87 Difference]: Start difference. First operand 6453 states and 17465 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:47,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:47,960 INFO L93 Difference]: Finished difference Result 16464 states and 43881 transitions. [2022-01-18 09:23:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:47,961 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:47,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:47,984 INFO L225 Difference]: With dead ends: 16464 [2022-01-18 09:23:47,985 INFO L226 Difference]: Without dead ends: 16464 [2022-01-18 09:23:47,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:23:47,985 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1450 mSDsluCounter, 2363 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:47,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 2689 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:48,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16464 states. [2022-01-18 09:23:48,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16464 to 6489. [2022-01-18 09:23:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:23:48,126 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:23:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:48,126 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:23:48,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:23:48,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:48,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:48,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:48,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 09:23:48,134 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash 196414056, now seen corresponding path program 118 times [2022-01-18 09:23:48,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:48,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255315804] [2022-01-18 09:23:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:48,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:48,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:48,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255315804] [2022-01-18 09:23:48,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255315804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:48,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:48,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:48,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199597443] [2022-01-18 09:23:48,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:48,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:48,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:48,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:48,476 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:50,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:50,035 INFO L93 Difference]: Finished difference Result 17414 states and 46007 transitions. [2022-01-18 09:23:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:23:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:50,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:50,059 INFO L225 Difference]: With dead ends: 17414 [2022-01-18 09:23:50,059 INFO L226 Difference]: Without dead ends: 17414 [2022-01-18 09:23:50,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:23:50,059 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1593 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:50,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1593 Valid, 2476 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:50,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17414 states. [2022-01-18 09:23:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17414 to 6471. [2022-01-18 09:23:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:50,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-18 09:23:50,193 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-18 09:23:50,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:50,194 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-18 09:23:50,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-18 09:23:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:50,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:50,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:50,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 09:23:50,201 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:50,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:50,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1220673724, now seen corresponding path program 119 times [2022-01-18 09:23:50,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:50,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349825073] [2022-01-18 09:23:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:50,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:50,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:50,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:50,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349825073] [2022-01-18 09:23:50,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349825073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:50,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:50,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:50,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808247798] [2022-01-18 09:23:50,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:50,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:50,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:50,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:50,525 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:52,193 INFO L93 Difference]: Finished difference Result 20756 states and 54690 transitions. [2022-01-18 09:23:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:23:52,193 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:52,224 INFO L225 Difference]: With dead ends: 20756 [2022-01-18 09:23:52,224 INFO L226 Difference]: Without dead ends: 20756 [2022-01-18 09:23:52,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:23:52,224 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1632 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:52,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1632 Valid, 2546 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:52,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20756 states. [2022-01-18 09:23:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 6489. [2022-01-18 09:23:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:23:52,388 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:23:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:52,388 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:23:52,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:23:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:52,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:52,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:52,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 09:23:52,396 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:52,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:52,397 INFO L85 PathProgramCache]: Analyzing trace with hash 477965450, now seen corresponding path program 120 times [2022-01-18 09:23:52,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:52,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525666016] [2022-01-18 09:23:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:52,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:52,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525666016] [2022-01-18 09:23:52,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525666016] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:52,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:52,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:23:52,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521055000] [2022-01-18 09:23:52,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:52,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:23:52,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:52,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:23:52,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:23:52,694 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:53,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:53,806 INFO L93 Difference]: Finished difference Result 17568 states and 46458 transitions. [2022-01-18 09:23:53,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:23:53,807 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:53,830 INFO L225 Difference]: With dead ends: 17568 [2022-01-18 09:23:53,831 INFO L226 Difference]: Without dead ends: 17568 [2022-01-18 09:23:53,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:23:53,831 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1483 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:53,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 2823 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:53,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17568 states. [2022-01-18 09:23:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17568 to 6417. [2022-01-18 09:23:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6417 states, 6415 states have (on average 2.7063133281371785) internal successors, (17361), 6416 states have internal predecessors, (17361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:53,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 17361 transitions. [2022-01-18 09:23:53,962 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 17361 transitions. Word has length 130 [2022-01-18 09:23:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:53,962 INFO L470 AbstractCegarLoop]: Abstraction has 6417 states and 17361 transitions. [2022-01-18 09:23:53,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 17361 transitions. [2022-01-18 09:23:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:53,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:53,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:53,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 09:23:53,969 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:53,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:53,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1170894620, now seen corresponding path program 121 times [2022-01-18 09:23:53,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:53,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798581770] [2022-01-18 09:23:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:53,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:54,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:54,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798581770] [2022-01-18 09:23:54,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798581770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:54,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:54,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:54,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555041090] [2022-01-18 09:23:54,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:54,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:54,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:54,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:54,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:54,296 INFO L87 Difference]: Start difference. First operand 6417 states and 17361 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:55,793 INFO L93 Difference]: Finished difference Result 16776 states and 44551 transitions. [2022-01-18 09:23:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:55,794 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:55,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:55,817 INFO L225 Difference]: With dead ends: 16776 [2022-01-18 09:23:55,817 INFO L226 Difference]: Without dead ends: 16776 [2022-01-18 09:23:55,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:23:55,818 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1420 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:55,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 2722 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:23:55,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16776 states. [2022-01-18 09:23:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16776 to 6489. [2022-01-18 09:23:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:23:55,952 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:23:55,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:55,952 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:23:55,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:23:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:55,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:55,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:55,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 09:23:55,978 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:55,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:55,979 INFO L85 PathProgramCache]: Analyzing trace with hash 527744554, now seen corresponding path program 122 times [2022-01-18 09:23:55,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:55,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753683486] [2022-01-18 09:23:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:55,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:56,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:56,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753683486] [2022-01-18 09:23:56,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753683486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:56,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:56,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:56,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442268788] [2022-01-18 09:23:56,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:56,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:56,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:56,303 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:57,742 INFO L93 Difference]: Finished difference Result 16684 states and 44279 transitions. [2022-01-18 09:23:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:57,765 INFO L225 Difference]: With dead ends: 16684 [2022-01-18 09:23:57,765 INFO L226 Difference]: Without dead ends: 16684 [2022-01-18 09:23:57,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:23:57,765 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1368 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:57,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1368 Valid, 2529 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:23:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16684 states. [2022-01-18 09:23:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16684 to 6471. [2022-01-18 09:23:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-18 09:23:57,902 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-18 09:23:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:57,902 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-18 09:23:57,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-18 09:23:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:57,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:57,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:57,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 09:23:57,911 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:57,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:57,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1775307686, now seen corresponding path program 123 times [2022-01-18 09:23:57,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:57,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067119508] [2022-01-18 09:23:57,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:57,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:58,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:58,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067119508] [2022-01-18 09:23:58,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067119508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:58,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:58,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:23:58,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420263664] [2022-01-18 09:23:58,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:58,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:23:58,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:58,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:23:58,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:23:58,248 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:59,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:59,700 INFO L93 Difference]: Finished difference Result 16980 states and 45145 transitions. [2022-01-18 09:23:59,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:23:59,701 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:23:59,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:59,726 INFO L225 Difference]: With dead ends: 16980 [2022-01-18 09:23:59,726 INFO L226 Difference]: Without dead ends: 16980 [2022-01-18 09:23:59,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:23:59,726 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1325 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:59,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 2828 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:23:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16980 states. [2022-01-18 09:23:59,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16980 to 6435. [2022-01-18 09:23:59,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6433 states have (on average 2.7068241877817503) internal successors, (17413), 6434 states have internal predecessors, (17413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 17413 transitions. [2022-01-18 09:23:59,869 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 17413 transitions. Word has length 130 [2022-01-18 09:23:59,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:59,869 INFO L470 AbstractCegarLoop]: Abstraction has 6435 states and 17413 transitions. [2022-01-18 09:23:59,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 17413 transitions. [2022-01-18 09:23:59,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:23:59,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:59,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:59,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 09:23:59,877 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:59,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:59,877 INFO L85 PathProgramCache]: Analyzing trace with hash 600390566, now seen corresponding path program 124 times [2022-01-18 09:23:59,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:59,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283289291] [2022-01-18 09:23:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:59,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:00,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:00,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283289291] [2022-01-18 09:24:00,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283289291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:00,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:00,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:00,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099061741] [2022-01-18 09:24:00,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:00,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:00,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:00,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:00,186 INFO L87 Difference]: Start difference. First operand 6435 states and 17413 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:01,317 INFO L93 Difference]: Finished difference Result 13774 states and 36736 transitions. [2022-01-18 09:24:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:01,318 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:01,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:01,339 INFO L225 Difference]: With dead ends: 13774 [2022-01-18 09:24:01,339 INFO L226 Difference]: Without dead ends: 13774 [2022-01-18 09:24:01,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:01,339 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1090 mSDsluCounter, 2446 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:01,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2782 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13774 states. [2022-01-18 09:24:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13774 to 6399. [2022-01-18 09:24:01,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 6397 states have (on average 2.705799593559481) internal successors, (17309), 6398 states have internal predecessors, (17309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 17309 transitions. [2022-01-18 09:24:01,472 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 17309 transitions. Word has length 130 [2022-01-18 09:24:01,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:01,473 INFO L470 AbstractCegarLoop]: Abstraction has 6399 states and 17309 transitions. [2022-01-18 09:24:01,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:01,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 17309 transitions. [2022-01-18 09:24:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:01,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:01,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:01,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 09:24:01,481 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:01,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:01,481 INFO L85 PathProgramCache]: Analyzing trace with hash 392377702, now seen corresponding path program 125 times [2022-01-18 09:24:01,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:01,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928144718] [2022-01-18 09:24:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:01,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:01,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:01,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928144718] [2022-01-18 09:24:01,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928144718] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:01,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:01,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:01,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046889851] [2022-01-18 09:24:01,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:01,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:01,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:01,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:01,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:01,806 INFO L87 Difference]: Start difference. First operand 6399 states and 17309 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:03,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:03,436 INFO L93 Difference]: Finished difference Result 21406 states and 56647 transitions. [2022-01-18 09:24:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:24:03,436 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:03,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:03,466 INFO L225 Difference]: With dead ends: 21406 [2022-01-18 09:24:03,466 INFO L226 Difference]: Without dead ends: 21406 [2022-01-18 09:24:03,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:24:03,467 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1672 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:03,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 2534 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:03,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21406 states. [2022-01-18 09:24:03,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21406 to 6561. [2022-01-18 09:24:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-18 09:24:03,623 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-18 09:24:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:03,623 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-18 09:24:03,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-18 09:24:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:03,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:03,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:03,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 09:24:03,630 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:03,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:03,630 INFO L85 PathProgramCache]: Analyzing trace with hash 2091016876, now seen corresponding path program 126 times [2022-01-18 09:24:03,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:03,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632371942] [2022-01-18 09:24:03,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:03,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:03,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:03,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632371942] [2022-01-18 09:24:03,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632371942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:03,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:03,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:03,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595257198] [2022-01-18 09:24:03,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:03,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:03,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:03,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:03,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:03,960 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:05,591 INFO L93 Difference]: Finished difference Result 21314 states and 56375 transitions. [2022-01-18 09:24:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:24:05,592 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:05,623 INFO L225 Difference]: With dead ends: 21314 [2022-01-18 09:24:05,623 INFO L226 Difference]: Without dead ends: 21314 [2022-01-18 09:24:05,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:24:05,624 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1376 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:05,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 2853 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:05,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21314 states. [2022-01-18 09:24:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21314 to 6543. [2022-01-18 09:24:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:05,829 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:05,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:05,829 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:05,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:05,829 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:05,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:05,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:05,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 09:24:05,837 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash -956387288, now seen corresponding path program 127 times [2022-01-18 09:24:05,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:05,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648491916] [2022-01-18 09:24:05,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:05,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:06,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:06,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648491916] [2022-01-18 09:24:06,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648491916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:06,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:06,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:06,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092348512] [2022-01-18 09:24:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:06,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:06,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:06,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:06,141 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:07,277 INFO L93 Difference]: Finished difference Result 18872 states and 49962 transitions. [2022-01-18 09:24:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:07,303 INFO L225 Difference]: With dead ends: 18872 [2022-01-18 09:24:07,303 INFO L226 Difference]: Without dead ends: 18872 [2022-01-18 09:24:07,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:07,304 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1313 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:07,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 2865 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18872 states. [2022-01-18 09:24:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18872 to 6507. [2022-01-18 09:24:07,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:07,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-18 09:24:07,446 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-18 09:24:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:07,446 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-18 09:24:07,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-18 09:24:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:07,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:07,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:07,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 09:24:07,454 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:07,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:07,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2029199628, now seen corresponding path program 128 times [2022-01-18 09:24:07,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:07,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000227376] [2022-01-18 09:24:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:07,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:07,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:07,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000227376] [2022-01-18 09:24:07,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000227376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:07,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:07,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:07,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567776696] [2022-01-18 09:24:07,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:07,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:07,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:07,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:07,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:07,764 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:08,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:08,890 INFO L93 Difference]: Finished difference Result 21566 states and 57149 transitions. [2022-01-18 09:24:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:08,890 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:08,920 INFO L225 Difference]: With dead ends: 21566 [2022-01-18 09:24:08,920 INFO L226 Difference]: Without dead ends: 21566 [2022-01-18 09:24:08,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:08,921 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1407 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:08,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1407 Valid, 2615 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:08,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21566 states. [2022-01-18 09:24:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21566 to 6543. [2022-01-18 09:24:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:09,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:09,078 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:09,079 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:09,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:09,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:09,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:09,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:09,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 09:24:09,086 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:09,086 INFO L85 PathProgramCache]: Analyzing trace with hash 405250120, now seen corresponding path program 129 times [2022-01-18 09:24:09,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:09,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671415362] [2022-01-18 09:24:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:09,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:09,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:09,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671415362] [2022-01-18 09:24:09,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671415362] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:09,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:09,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:24:09,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782701821] [2022-01-18 09:24:09,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:09,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:24:09,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:09,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:24:09,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:24:09,466 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:10,958 INFO L93 Difference]: Finished difference Result 22516 states and 59275 transitions. [2022-01-18 09:24:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:10,958 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:10,991 INFO L225 Difference]: With dead ends: 22516 [2022-01-18 09:24:10,991 INFO L226 Difference]: Without dead ends: 22516 [2022-01-18 09:24:10,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:24:10,991 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1357 mSDsluCounter, 3779 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:10,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 4139 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:24:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22516 states. [2022-01-18 09:24:11,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22516 to 6525. [2022-01-18 09:24:11,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-18 09:24:11,164 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-18 09:24:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:11,165 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-18 09:24:11,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:11,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-18 09:24:11,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:11,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:11,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:11,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 09:24:11,173 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:11,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1011837660, now seen corresponding path program 130 times [2022-01-18 09:24:11,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:11,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703715283] [2022-01-18 09:24:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:11,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:11,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:11,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703715283] [2022-01-18 09:24:11,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703715283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:11,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:11,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:24:11,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386521372] [2022-01-18 09:24:11,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:11,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:24:11,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:11,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:24:11,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:24:11,574 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:13,139 INFO L93 Difference]: Finished difference Result 24236 states and 63400 transitions. [2022-01-18 09:24:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:13,139 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:13,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:13,173 INFO L225 Difference]: With dead ends: 24236 [2022-01-18 09:24:13,173 INFO L226 Difference]: Without dead ends: 24236 [2022-01-18 09:24:13,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:24:13,174 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1599 mSDsluCounter, 4185 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:13,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 4554 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:24:13,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24236 states. [2022-01-18 09:24:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24236 to 6543. [2022-01-18 09:24:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:13,355 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:13,355 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:13,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:13,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:13,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:13,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 09:24:13,363 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash 686801514, now seen corresponding path program 131 times [2022-01-18 09:24:13,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:13,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837715056] [2022-01-18 09:24:13,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:13,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:13,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:13,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837715056] [2022-01-18 09:24:13,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837715056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:13,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:13,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:13,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860231130] [2022-01-18 09:24:13,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:13,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:13,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:13,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:13,661 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:14,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:14,823 INFO L93 Difference]: Finished difference Result 21048 states and 55168 transitions. [2022-01-18 09:24:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:14,823 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:14,855 INFO L225 Difference]: With dead ends: 21048 [2022-01-18 09:24:14,855 INFO L226 Difference]: Without dead ends: 21048 [2022-01-18 09:24:14,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:14,856 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1260 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:14,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 3011 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:14,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21048 states. [2022-01-18 09:24:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21048 to 6471. [2022-01-18 09:24:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-18 09:24:15,049 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-18 09:24:15,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:15,049 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-18 09:24:15,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:15,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-18 09:24:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:15,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:15,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:15,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 09:24:15,057 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:15,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:15,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2049385998, now seen corresponding path program 132 times [2022-01-18 09:24:15,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:15,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803021205] [2022-01-18 09:24:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:15,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:15,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:15,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:15,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803021205] [2022-01-18 09:24:15,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803021205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:15,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:15,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:15,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126726837] [2022-01-18 09:24:15,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:15,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:15,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:15,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:15,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:15,399 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:16,881 INFO L93 Difference]: Finished difference Result 16964 states and 45267 transitions. [2022-01-18 09:24:16,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:24:16,881 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:16,906 INFO L225 Difference]: With dead ends: 16964 [2022-01-18 09:24:16,906 INFO L226 Difference]: Without dead ends: 16964 [2022-01-18 09:24:16,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:24:16,907 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1266 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:16,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 2731 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16964 states. [2022-01-18 09:24:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16964 to 6543. [2022-01-18 09:24:17,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:17,041 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:17,041 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:17,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:17,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:17,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:17,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 09:24:17,048 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:17,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1795951286, now seen corresponding path program 133 times [2022-01-18 09:24:17,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:17,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045665768] [2022-01-18 09:24:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:17,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:17,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:17,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045665768] [2022-01-18 09:24:17,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045665768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:17,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:17,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:17,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122020400] [2022-01-18 09:24:17,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:17,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:17,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:17,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:17,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:17,406 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:19,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:19,012 INFO L93 Difference]: Finished difference Result 19778 states and 52635 transitions. [2022-01-18 09:24:19,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:19,012 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:19,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:19,041 INFO L225 Difference]: With dead ends: 19778 [2022-01-18 09:24:19,041 INFO L226 Difference]: Without dead ends: 19778 [2022-01-18 09:24:19,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:24:19,041 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1441 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:19,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 2810 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:19,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19778 states. [2022-01-18 09:24:19,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19778 to 6561. [2022-01-18 09:24:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-18 09:24:19,201 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-18 09:24:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:19,201 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-18 09:24:19,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-18 09:24:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:19,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:19,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:19,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 09:24:19,209 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash 172001778, now seen corresponding path program 134 times [2022-01-18 09:24:19,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:19,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130185152] [2022-01-18 09:24:19,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:19,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:19,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:19,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130185152] [2022-01-18 09:24:19,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130185152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:19,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:19,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:19,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033563459] [2022-01-18 09:24:19,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:19,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:19,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:19,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:19,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:19,538 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:20,657 INFO L93 Difference]: Finished difference Result 17996 states and 47603 transitions. [2022-01-18 09:24:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:20,682 INFO L225 Difference]: With dead ends: 17996 [2022-01-18 09:24:20,683 INFO L226 Difference]: Without dead ends: 17996 [2022-01-18 09:24:20,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:20,683 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1511 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:20,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 2494 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:20,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-01-18 09:24:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 6507. [2022-01-18 09:24:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-18 09:24:20,826 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-18 09:24:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:20,826 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-18 09:24:20,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-18 09:24:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:20,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:20,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:20,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 09:24:20,834 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:20,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:20,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1568360516, now seen corresponding path program 135 times [2022-01-18 09:24:20,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:20,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954510698] [2022-01-18 09:24:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:20,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:21,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:21,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954510698] [2022-01-18 09:24:21,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954510698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:21,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:21,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:21,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773851376] [2022-01-18 09:24:21,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:21,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:21,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:21,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:21,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:21,141 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:22,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:22,307 INFO L93 Difference]: Finished difference Result 19404 states and 51058 transitions. [2022-01-18 09:24:22,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:22,308 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:22,334 INFO L225 Difference]: With dead ends: 19404 [2022-01-18 09:24:22,334 INFO L226 Difference]: Without dead ends: 19404 [2022-01-18 09:24:22,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:22,335 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1234 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:22,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 2979 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:22,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19404 states. [2022-01-18 09:24:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19404 to 6543. [2022-01-18 09:24:22,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:22,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:22,482 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:22,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:22,483 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:22,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:22,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:22,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:22,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:22,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:22,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 09:24:22,490 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1102657272, now seen corresponding path program 136 times [2022-01-18 09:24:22,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:22,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716487465] [2022-01-18 09:24:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:22,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:22,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:22,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716487465] [2022-01-18 09:24:22,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716487465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:22,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:22,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:22,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197161030] [2022-01-18 09:24:22,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:22,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:22,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:22,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:22,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:22,828 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:24,692 INFO L93 Difference]: Finished difference Result 20354 states and 53184 transitions. [2022-01-18 09:24:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:24:24,693 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:24,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:24,718 INFO L225 Difference]: With dead ends: 20354 [2022-01-18 09:24:24,718 INFO L226 Difference]: Without dead ends: 20354 [2022-01-18 09:24:24,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:24:24,719 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1600 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:24,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1600 Valid, 2915 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:24,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20354 states. [2022-01-18 09:24:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20354 to 6525. [2022-01-18 09:24:24,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-18 09:24:24,854 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-18 09:24:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:24,854 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-18 09:24:24,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-18 09:24:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:24,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:24,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:24,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 09:24:24,861 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:24,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash -314430508, now seen corresponding path program 137 times [2022-01-18 09:24:24,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:24,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569415837] [2022-01-18 09:24:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:24,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:25,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:25,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569415837] [2022-01-18 09:24:25,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569415837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:25,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:25,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:25,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647295825] [2022-01-18 09:24:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:25,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:25,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:25,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:25,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:25,161 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:26,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:26,327 INFO L93 Difference]: Finished difference Result 19590 states and 51364 transitions. [2022-01-18 09:24:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:26,327 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:26,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:26,356 INFO L225 Difference]: With dead ends: 19590 [2022-01-18 09:24:26,356 INFO L226 Difference]: Without dead ends: 19590 [2022-01-18 09:24:26,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:26,357 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1283 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:26,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 2941 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:26,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19590 states. [2022-01-18 09:24:26,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19590 to 6543. [2022-01-18 09:24:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:26,520 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:26,520 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:26,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:26,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:26,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:26,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 09:24:26,528 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:26,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1384208666, now seen corresponding path program 138 times [2022-01-18 09:24:26,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:26,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060379126] [2022-01-18 09:24:26,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:26,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:26,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:26,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060379126] [2022-01-18 09:24:26,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060379126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:26,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:26,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:26,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710286579] [2022-01-18 09:24:26,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:26,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:26,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:26,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:26,832 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:27,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:27,925 INFO L93 Difference]: Finished difference Result 16402 states and 43132 transitions. [2022-01-18 09:24:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:27,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:27,948 INFO L225 Difference]: With dead ends: 16402 [2022-01-18 09:24:27,948 INFO L226 Difference]: Without dead ends: 16402 [2022-01-18 09:24:27,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:27,948 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1319 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:27,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 2570 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:27,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16402 states. [2022-01-18 09:24:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16402 to 6363. [2022-01-18 09:24:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6363 states, 6361 states have (on average 2.7047634019808204) internal successors, (17205), 6362 states have internal predecessors, (17205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6363 states to 6363 states and 17205 transitions. [2022-01-18 09:24:28,083 INFO L78 Accepts]: Start accepts. Automaton has 6363 states and 17205 transitions. Word has length 130 [2022-01-18 09:24:28,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:28,084 INFO L470 AbstractCegarLoop]: Abstraction has 6363 states and 17205 transitions. [2022-01-18 09:24:28,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 6363 states and 17205 transitions. [2022-01-18 09:24:28,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:28,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:28,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:28,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 09:24:28,091 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:28,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1946510152, now seen corresponding path program 139 times [2022-01-18 09:24:28,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:28,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939597976] [2022-01-18 09:24:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:28,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:28,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:28,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939597976] [2022-01-18 09:24:28,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939597976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:28,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:28,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:28,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516061534] [2022-01-18 09:24:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:28,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:28,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:28,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:28,397 INFO L87 Difference]: Start difference. First operand 6363 states and 17205 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:29,581 INFO L93 Difference]: Finished difference Result 22138 states and 58681 transitions. [2022-01-18 09:24:29,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:29,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:29,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:29,613 INFO L225 Difference]: With dead ends: 22138 [2022-01-18 09:24:29,613 INFO L226 Difference]: Without dead ends: 22138 [2022-01-18 09:24:29,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:29,613 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1475 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:29,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 2873 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22138 states. [2022-01-18 09:24:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22138 to 6561. [2022-01-18 09:24:29,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-18 09:24:29,777 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-18 09:24:29,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:29,778 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-18 09:24:29,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:29,778 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-18 09:24:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:29,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:29,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:29,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 09:24:29,785 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -649817970, now seen corresponding path program 140 times [2022-01-18 09:24:29,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:29,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026375156] [2022-01-18 09:24:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:29,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:30,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:30,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026375156] [2022-01-18 09:24:30,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026375156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:30,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:30,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:24:30,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83794997] [2022-01-18 09:24:30,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:30,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:24:30,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:30,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:24:30,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:24:30,164 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:31,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:31,612 INFO L93 Difference]: Finished difference Result 22046 states and 58409 transitions. [2022-01-18 09:24:31,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:31,612 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:31,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:31,646 INFO L225 Difference]: With dead ends: 22046 [2022-01-18 09:24:31,646 INFO L226 Difference]: Without dead ends: 22046 [2022-01-18 09:24:31,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:24:31,646 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1583 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 4230 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:31,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 4230 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:24:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22046 states. [2022-01-18 09:24:31,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22046 to 6543. [2022-01-18 09:24:31,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:31,833 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:31,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:31,834 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:31,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:31,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:31,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:31,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:31,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 09:24:31,842 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:31,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:31,842 INFO L85 PathProgramCache]: Analyzing trace with hash 597745162, now seen corresponding path program 141 times [2022-01-18 09:24:31,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:31,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174388193] [2022-01-18 09:24:31,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:31,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:32,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:32,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174388193] [2022-01-18 09:24:32,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174388193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:32,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:32,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:32,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043610118] [2022-01-18 09:24:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:32,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:32,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:32,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:32,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:32,151 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:33,329 INFO L93 Difference]: Finished difference Result 19604 states and 51996 transitions. [2022-01-18 09:24:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:33,329 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:33,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:33,358 INFO L225 Difference]: With dead ends: 19604 [2022-01-18 09:24:33,358 INFO L226 Difference]: Without dead ends: 19604 [2022-01-18 09:24:33,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:33,358 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1294 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:33,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1294 Valid, 2903 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19604 states. [2022-01-18 09:24:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19604 to 6507. [2022-01-18 09:24:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-18 09:24:33,523 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-18 09:24:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:33,523 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-18 09:24:33,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-18 09:24:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:33,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:33,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:33,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 09:24:33,531 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:33,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash -711635218, now seen corresponding path program 142 times [2022-01-18 09:24:33,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:33,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101308672] [2022-01-18 09:24:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:33,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:33,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:33,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101308672] [2022-01-18 09:24:33,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101308672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:33,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:33,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:33,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655121541] [2022-01-18 09:24:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:33,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:33,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:33,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:33,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:33,838 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:34,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:34,988 INFO L93 Difference]: Finished difference Result 22298 states and 59183 transitions. [2022-01-18 09:24:34,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:34,988 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:34,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:35,021 INFO L225 Difference]: With dead ends: 22298 [2022-01-18 09:24:35,021 INFO L226 Difference]: Without dead ends: 22298 [2022-01-18 09:24:35,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:35,021 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1534 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:35,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 2648 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22298 states. [2022-01-18 09:24:35,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22298 to 6543. [2022-01-18 09:24:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:35,185 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:35,185 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:35,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:35,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:35,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:35,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 09:24:35,193 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:35,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1959382570, now seen corresponding path program 143 times [2022-01-18 09:24:35,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:35,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337122408] [2022-01-18 09:24:35,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:35,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:35,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:35,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:35,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337122408] [2022-01-18 09:24:35,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337122408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:35,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:35,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:35,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440129561] [2022-01-18 09:24:35,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:35,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:35,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:35,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:35,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:35,523 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:37,240 INFO L93 Difference]: Finished difference Result 23248 states and 61309 transitions. [2022-01-18 09:24:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:24:37,240 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:37,277 INFO L225 Difference]: With dead ends: 23248 [2022-01-18 09:24:37,277 INFO L226 Difference]: Without dead ends: 23248 [2022-01-18 09:24:37,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:24:37,278 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1394 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:37,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1394 Valid, 2679 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23248 states. [2022-01-18 09:24:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23248 to 6525. [2022-01-18 09:24:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:37,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-18 09:24:37,456 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-18 09:24:37,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:37,456 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-18 09:24:37,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-18 09:24:37,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:37,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:37,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:37,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 09:24:37,464 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:37,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:37,464 INFO L85 PathProgramCache]: Analyzing trace with hash 542294790, now seen corresponding path program 144 times [2022-01-18 09:24:37,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:37,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475391064] [2022-01-18 09:24:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:37,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:37,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:37,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475391064] [2022-01-18 09:24:37,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475391064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:37,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:37,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:24:37,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119776640] [2022-01-18 09:24:37,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:37,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:24:37,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:24:37,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:24:37,870 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:39,357 INFO L93 Difference]: Finished difference Result 24968 states and 65434 transitions. [2022-01-18 09:24:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:39,357 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:39,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:39,396 INFO L225 Difference]: With dead ends: 24968 [2022-01-18 09:24:39,397 INFO L226 Difference]: Without dead ends: 24968 [2022-01-18 09:24:39,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:24:39,397 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 1460 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:39,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1460 Valid, 4333 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:24:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24968 states. [2022-01-18 09:24:39,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24968 to 6543. [2022-01-18 09:24:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:39,606 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:39,606 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:39,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:39,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:39,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:39,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:39,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:39,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 09:24:39,615 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:39,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2054033332, now seen corresponding path program 145 times [2022-01-18 09:24:39,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:39,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758922924] [2022-01-18 09:24:39,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:39,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:39,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:39,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758922924] [2022-01-18 09:24:39,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758922924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:39,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:39,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:39,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887647076] [2022-01-18 09:24:39,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:39,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:39,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:39,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:39,949 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:41,677 INFO L93 Difference]: Finished difference Result 21780 states and 57202 transitions. [2022-01-18 09:24:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:24:41,677 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:41,707 INFO L225 Difference]: With dead ends: 21780 [2022-01-18 09:24:41,708 INFO L226 Difference]: Without dead ends: 21780 [2022-01-18 09:24:41,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:24:41,708 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1433 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:41,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1433 Valid, 2996 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21780 states. [2022-01-18 09:24:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21780 to 6471. [2022-01-18 09:24:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-18 09:24:41,871 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-18 09:24:41,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:41,871 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-18 09:24:41,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:41,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-18 09:24:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:41,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:41,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:41,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 09:24:41,879 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:41,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:41,879 INFO L85 PathProgramCache]: Analyzing trace with hash -495253548, now seen corresponding path program 146 times [2022-01-18 09:24:41,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:41,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570131279] [2022-01-18 09:24:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:41,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:42,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:42,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570131279] [2022-01-18 09:24:42,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570131279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:42,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:42,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:24:42,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107382405] [2022-01-18 09:24:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:42,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:24:42,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:24:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:24:42,281 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:43,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:43,816 INFO L93 Difference]: Finished difference Result 22966 states and 61059 transitions. [2022-01-18 09:24:43,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:43,816 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:43,851 INFO L225 Difference]: With dead ends: 22966 [2022-01-18 09:24:43,851 INFO L226 Difference]: Without dead ends: 22966 [2022-01-18 09:24:43,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:24:43,852 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1503 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:43,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 4225 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:24:43,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22966 states. [2022-01-18 09:24:44,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22966 to 6543. [2022-01-18 09:24:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:44,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:44,033 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:44,033 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:44,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:44,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:44,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:44,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:44,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 09:24:44,041 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:44,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:44,041 INFO L85 PathProgramCache]: Analyzing trace with hash -944883560, now seen corresponding path program 147 times [2022-01-18 09:24:44,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:44,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218463080] [2022-01-18 09:24:44,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:44,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:44,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:44,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218463080] [2022-01-18 09:24:44,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218463080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:44,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:44,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:44,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992711444] [2022-01-18 09:24:44,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:44,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:44,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:44,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:44,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:44,355 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:45,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:45,566 INFO L93 Difference]: Finished difference Result 25780 states and 68427 transitions. [2022-01-18 09:24:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:45,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:45,605 INFO L225 Difference]: With dead ends: 25780 [2022-01-18 09:24:45,605 INFO L226 Difference]: Without dead ends: 25780 [2022-01-18 09:24:45,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:45,606 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1287 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 3041 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:45,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 3041 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:45,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25780 states. [2022-01-18 09:24:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25780 to 6561. [2022-01-18 09:24:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 6559 states have (on average 2.7103216953803932) internal successors, (17777), 6560 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 17777 transitions. [2022-01-18 09:24:45,790 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 17777 transitions. Word has length 130 [2022-01-18 09:24:45,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:45,790 INFO L470 AbstractCegarLoop]: Abstraction has 6561 states and 17777 transitions. [2022-01-18 09:24:45,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 17777 transitions. [2022-01-18 09:24:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:45,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:45,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:45,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 09:24:45,798 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:45,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1726134228, now seen corresponding path program 148 times [2022-01-18 09:24:45,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:45,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896253680] [2022-01-18 09:24:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:45,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:46,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:46,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896253680] [2022-01-18 09:24:46,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896253680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:46,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:46,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:46,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865301020] [2022-01-18 09:24:46,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:46,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:46,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:46,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:46,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:46,130 INFO L87 Difference]: Start difference. First operand 6561 states and 17777 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:47,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:47,872 INFO L93 Difference]: Finished difference Result 23998 states and 63395 transitions. [2022-01-18 09:24:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:24:47,873 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:47,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:47,906 INFO L225 Difference]: With dead ends: 23998 [2022-01-18 09:24:47,906 INFO L226 Difference]: Without dead ends: 23998 [2022-01-18 09:24:47,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:24:47,906 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 1497 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:47,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 2683 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:47,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23998 states. [2022-01-18 09:24:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23998 to 6507. [2022-01-18 09:24:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-18 09:24:48,068 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-18 09:24:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:48,068 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-18 09:24:48,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-18 09:24:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:48,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:48,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:48,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 09:24:48,076 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash -14228066, now seen corresponding path program 149 times [2022-01-18 09:24:48,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:48,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72519657] [2022-01-18 09:24:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:48,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:48,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:48,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:48,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72519657] [2022-01-18 09:24:48,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72519657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:48,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:48,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:24:48,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8817329] [2022-01-18 09:24:48,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:48,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:24:48,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:48,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:24:48,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:24:48,390 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:49,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:49,589 INFO L93 Difference]: Finished difference Result 25406 states and 66850 transitions. [2022-01-18 09:24:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:24:49,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:49,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:49,628 INFO L225 Difference]: With dead ends: 25406 [2022-01-18 09:24:49,628 INFO L226 Difference]: Without dead ends: 25406 [2022-01-18 09:24:49,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:24:49,630 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 1265 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:49,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 3206 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25406 states. [2022-01-18 09:24:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25406 to 6543. [2022-01-18 09:24:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:49,812 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:49,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:49,812 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:49,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:49,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:49,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:49,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:49,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:49,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 09:24:49,820 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:49,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:49,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1638177574, now seen corresponding path program 150 times [2022-01-18 09:24:49,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:49,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975940708] [2022-01-18 09:24:49,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:49,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:50,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:50,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:50,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975940708] [2022-01-18 09:24:50,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975940708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:50,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:50,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:50,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710017442] [2022-01-18 09:24:50,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:50,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:50,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:50,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:50,150 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:52,115 INFO L93 Difference]: Finished difference Result 26356 states and 68976 transitions. [2022-01-18 09:24:52,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:24:52,115 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:52,158 INFO L225 Difference]: With dead ends: 26356 [2022-01-18 09:24:52,158 INFO L226 Difference]: Without dead ends: 26356 [2022-01-18 09:24:52,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=528, Invalid=1278, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 09:24:52,159 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1524 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:52,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1524 Valid, 3147 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:52,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26356 states. [2022-01-18 09:24:52,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26356 to 6525. [2022-01-18 09:24:52,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6523 states have (on average 2.7093361950022996) internal successors, (17673), 6524 states have internal predecessors, (17673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 17673 transitions. [2022-01-18 09:24:52,354 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 17673 transitions. Word has length 130 [2022-01-18 09:24:52,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:52,354 INFO L470 AbstractCegarLoop]: Abstraction has 6525 states and 17673 transitions. [2022-01-18 09:24:52,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 17673 transitions. [2022-01-18 09:24:52,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:52,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:52,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:52,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 09:24:52,362 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:52,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1239701942, now seen corresponding path program 151 times [2022-01-18 09:24:52,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:52,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185032544] [2022-01-18 09:24:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:52,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:52,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:52,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185032544] [2022-01-18 09:24:52,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185032544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:52,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:52,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:24:52,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323330609] [2022-01-18 09:24:52,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:52,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:24:52,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:52,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:24:52,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:24:52,745 INFO L87 Difference]: Start difference. First operand 6525 states and 17673 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:54,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:54,236 INFO L93 Difference]: Finished difference Result 25592 states and 67156 transitions. [2022-01-18 09:24:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:24:54,237 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:54,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:54,280 INFO L225 Difference]: With dead ends: 25592 [2022-01-18 09:24:54,280 INFO L226 Difference]: Without dead ends: 25592 [2022-01-18 09:24:54,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:24:54,281 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1342 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 4365 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:54,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 4365 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:24:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25592 states. [2022-01-18 09:24:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25592 to 6543. [2022-01-18 09:24:54,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6543 states, 6541 states have (on average 2.70983030117719) internal successors, (17725), 6542 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6543 states to 6543 states and 17725 transitions. [2022-01-18 09:24:54,489 INFO L78 Accepts]: Start accepts. Automaton has 6543 states and 17725 transitions. Word has length 130 [2022-01-18 09:24:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:54,489 INFO L470 AbstractCegarLoop]: Abstraction has 6543 states and 17725 transitions. [2022-01-18 09:24:54,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6543 states and 17725 transitions. [2022-01-18 09:24:54,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:54,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:54,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:54,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 09:24:54,497 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:54,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:54,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1356626180, now seen corresponding path program 152 times [2022-01-18 09:24:54,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:54,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598739376] [2022-01-18 09:24:54,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:54,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:54,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:54,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598739376] [2022-01-18 09:24:54,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598739376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:54,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:54,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:54,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895524822] [2022-01-18 09:24:54,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:54,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:54,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:54,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:54,834 INFO L87 Difference]: Start difference. First operand 6543 states and 17725 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:56,557 INFO L93 Difference]: Finished difference Result 22404 states and 58924 transitions. [2022-01-18 09:24:56,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:24:56,557 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:56,588 INFO L225 Difference]: With dead ends: 22404 [2022-01-18 09:24:56,589 INFO L226 Difference]: Without dead ends: 22404 [2022-01-18 09:24:56,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:24:56,589 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1437 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:56,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 2756 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:24:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2022-01-18 09:24:56,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 6399. [2022-01-18 09:24:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6399 states, 6397 states have (on average 2.705799593559481) internal successors, (17309), 6398 states have internal predecessors, (17309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6399 states to 6399 states and 17309 transitions. [2022-01-18 09:24:56,775 INFO L78 Accepts]: Start accepts. Automaton has 6399 states and 17309 transitions. Word has length 130 [2022-01-18 09:24:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:56,775 INFO L470 AbstractCegarLoop]: Abstraction has 6399 states and 17309 transitions. [2022-01-18 09:24:56,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6399 states and 17309 transitions. [2022-01-18 09:24:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:56,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:56,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:56,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 09:24:56,783 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:56,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1826201266, now seen corresponding path program 153 times [2022-01-18 09:24:56,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:56,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821198314] [2022-01-18 09:24:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:56,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:57,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:57,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821198314] [2022-01-18 09:24:57,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821198314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:57,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:57,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:57,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592186188] [2022-01-18 09:24:57,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:57,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:57,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:57,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:57,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:57,128 INFO L87 Difference]: Start difference. First operand 6399 states and 17309 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:58,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:58,584 INFO L93 Difference]: Finished difference Result 17712 states and 47401 transitions. [2022-01-18 09:24:58,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:24:58,584 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:24:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:58,610 INFO L225 Difference]: With dead ends: 17712 [2022-01-18 09:24:58,611 INFO L226 Difference]: Without dead ends: 17712 [2022-01-18 09:24:58,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:24:58,611 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1332 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:58,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 2694 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:24:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17712 states. [2022-01-18 09:24:58,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17712 to 6435. [2022-01-18 09:24:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6435 states, 6433 states have (on average 2.7068241877817503) internal successors, (17413), 6434 states have internal predecessors, (17413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 17413 transitions. [2022-01-18 09:24:58,761 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 17413 transitions. Word has length 130 [2022-01-18 09:24:58,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:58,762 INFO L470 AbstractCegarLoop]: Abstraction has 6435 states and 17413 transitions. [2022-01-18 09:24:58,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:58,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 17413 transitions. [2022-01-18 09:24:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:24:58,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:58,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:58,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 09:24:58,769 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:58,770 INFO L85 PathProgramCache]: Analyzing trace with hash -535625866, now seen corresponding path program 154 times [2022-01-18 09:24:58,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:58,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343039039] [2022-01-18 09:24:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:58,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:59,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:59,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343039039] [2022-01-18 09:24:59,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343039039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:59,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:59,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:24:59,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459926209] [2022-01-18 09:24:59,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:59,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:24:59,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:59,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:24:59,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:24:59,114 INFO L87 Difference]: Start difference. First operand 6435 states and 17413 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:00,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:00,685 INFO L93 Difference]: Finished difference Result 21014 states and 56125 transitions. [2022-01-18 09:25:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:00,716 INFO L225 Difference]: With dead ends: 21014 [2022-01-18 09:25:00,716 INFO L226 Difference]: Without dead ends: 21014 [2022-01-18 09:25:00,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:25:00,717 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1488 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 2805 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:00,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1488 Valid, 2805 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:25:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21014 states. [2022-01-18 09:25:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21014 to 6471. [2022-01-18 09:25:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-18 09:25:00,876 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-18 09:25:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:00,877 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-18 09:25:00,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-18 09:25:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:00,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:00,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:00,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 09:25:00,884 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1550164106, now seen corresponding path program 155 times [2022-01-18 09:25:00,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:00,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147583242] [2022-01-18 09:25:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:00,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:01,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:01,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147583242] [2022-01-18 09:25:01,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147583242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:01,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:01,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:01,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808388147] [2022-01-18 09:25:01,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:01,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:01,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:01,238 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:02,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:02,408 INFO L93 Difference]: Finished difference Result 20690 states and 55189 transitions. [2022-01-18 09:25:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:02,408 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:02,439 INFO L225 Difference]: With dead ends: 20690 [2022-01-18 09:25:02,439 INFO L226 Difference]: Without dead ends: 20690 [2022-01-18 09:25:02,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:02,440 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1335 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:02,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 2830 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20690 states. [2022-01-18 09:25:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20690 to 6489. [2022-01-18 09:25:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:25:02,609 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:25:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:02,609 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:25:02,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:25:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:02,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:02,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:02,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 09:25:02,617 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:02,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1120853682, now seen corresponding path program 156 times [2022-01-18 09:25:02,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:02,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664997200] [2022-01-18 09:25:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:02,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:02,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:02,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:02,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664997200] [2022-01-18 09:25:02,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664997200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:02,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:02,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:02,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130829533] [2022-01-18 09:25:02,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:02,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:02,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:02,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:02,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:02,935 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:04,101 INFO L93 Difference]: Finished difference Result 18908 states and 50157 transitions. [2022-01-18 09:25:04,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:04,101 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:04,127 INFO L225 Difference]: With dead ends: 18908 [2022-01-18 09:25:04,127 INFO L226 Difference]: Without dead ends: 18908 [2022-01-18 09:25:04,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:04,128 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1479 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:04,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 2791 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:04,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18908 states. [2022-01-18 09:25:04,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18908 to 6417. [2022-01-18 09:25:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6417 states, 6415 states have (on average 2.7063133281371785) internal successors, (17361), 6416 states have internal predecessors, (17361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 17361 transitions. [2022-01-18 09:25:04,274 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 17361 transitions. Word has length 130 [2022-01-18 09:25:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:04,275 INFO L470 AbstractCegarLoop]: Abstraction has 6417 states and 17361 transitions. [2022-01-18 09:25:04,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 17361 transitions. [2022-01-18 09:25:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:04,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:04,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:04,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 09:25:04,283 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:04,283 INFO L85 PathProgramCache]: Analyzing trace with hash 646606528, now seen corresponding path program 157 times [2022-01-18 09:25:04,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:04,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448673623] [2022-01-18 09:25:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:04,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:04,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:04,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448673623] [2022-01-18 09:25:04,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448673623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:04,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:04,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:04,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334385501] [2022-01-18 09:25:04,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:04,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:04,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:04,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:04,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:04,629 INFO L87 Difference]: Start difference. First operand 6417 states and 17361 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:06,316 INFO L93 Difference]: Finished difference Result 20552 states and 54240 transitions. [2022-01-18 09:25:06,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:25:06,316 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:06,343 INFO L225 Difference]: With dead ends: 20552 [2022-01-18 09:25:06,343 INFO L226 Difference]: Without dead ends: 20552 [2022-01-18 09:25:06,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=450, Invalid=1110, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:25:06,344 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1240 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:06,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 3029 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:25:06,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20552 states. [2022-01-18 09:25:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20552 to 6489. [2022-01-18 09:25:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:25:06,491 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:25:06,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:06,491 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:25:06,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:25:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:06,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:06,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:06,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 09:25:06,499 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -367931712, now seen corresponding path program 158 times [2022-01-18 09:25:06,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:06,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654632444] [2022-01-18 09:25:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:06,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:06,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:06,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654632444] [2022-01-18 09:25:06,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654632444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:06,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:06,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:06,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605114280] [2022-01-18 09:25:06,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:06,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:06,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:06,835 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:08,585 INFO L93 Difference]: Finished difference Result 23366 states and 61608 transitions. [2022-01-18 09:25:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:25:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:08,619 INFO L225 Difference]: With dead ends: 23366 [2022-01-18 09:25:08,619 INFO L226 Difference]: Without dead ends: 23366 [2022-01-18 09:25:08,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:25:08,619 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1328 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:08,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 3052 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:25:08,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23366 states. [2022-01-18 09:25:08,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23366 to 6507. [2022-01-18 09:25:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 6505 states have (on average 2.708839354342813) internal successors, (17621), 6506 states have internal predecessors, (17621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:08,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 17621 transitions. [2022-01-18 09:25:08,792 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 17621 transitions. Word has length 130 [2022-01-18 09:25:08,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:08,792 INFO L470 AbstractCegarLoop]: Abstraction has 6507 states and 17621 transitions. [2022-01-18 09:25:08,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 17621 transitions. [2022-01-18 09:25:08,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:08,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:08,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:08,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 09:25:08,800 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:08,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:08,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1991881220, now seen corresponding path program 159 times [2022-01-18 09:25:08,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:08,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378445872] [2022-01-18 09:25:08,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:08,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:09,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:09,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378445872] [2022-01-18 09:25:09,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378445872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:09,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:09,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:09,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625868648] [2022-01-18 09:25:09,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:09,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:09,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:09,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:09,189 INFO L87 Difference]: Start difference. First operand 6507 states and 17621 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:10,678 INFO L93 Difference]: Finished difference Result 21584 states and 56576 transitions. [2022-01-18 09:25:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:10,679 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:10,710 INFO L225 Difference]: With dead ends: 21584 [2022-01-18 09:25:10,711 INFO L226 Difference]: Without dead ends: 21584 [2022-01-18 09:25:10,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:10,711 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1304 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 4185 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:10,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 4185 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21584 states. [2022-01-18 09:25:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21584 to 6453. [2022-01-18 09:25:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 6451 states have (on average 2.707332196558673) internal successors, (17465), 6452 states have internal predecessors, (17465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 17465 transitions. [2022-01-18 09:25:10,896 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 17465 transitions. Word has length 130 [2022-01-18 09:25:10,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:10,897 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 17465 transitions. [2022-01-18 09:25:10,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 17465 transitions. [2022-01-18 09:25:10,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:10,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:10,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:10,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 09:25:10,905 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:10,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:10,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1549453986, now seen corresponding path program 160 times [2022-01-18 09:25:10,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:10,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132542405] [2022-01-18 09:25:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:10,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:11,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:11,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132542405] [2022-01-18 09:25:11,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132542405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:11,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:11,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:11,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068154263] [2022-01-18 09:25:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:11,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:11,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:11,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:11,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:11,211 INFO L87 Difference]: Start difference. First operand 6453 states and 17465 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:12,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:12,376 INFO L93 Difference]: Finished difference Result 20064 states and 52884 transitions. [2022-01-18 09:25:12,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:12,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:12,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:12,405 INFO L225 Difference]: With dead ends: 20064 [2022-01-18 09:25:12,405 INFO L226 Difference]: Without dead ends: 20064 [2022-01-18 09:25:12,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:12,405 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1344 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:12,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1344 Valid, 3009 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20064 states. [2022-01-18 09:25:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20064 to 6489. [2022-01-18 09:25:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:25:12,559 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:25:12,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:12,560 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:25:12,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:12,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:25:12,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:12,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:12,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:12,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 09:25:12,567 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:12,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1121563802, now seen corresponding path program 161 times [2022-01-18 09:25:12,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:12,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549888379] [2022-01-18 09:25:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:12,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:12,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:12,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549888379] [2022-01-18 09:25:12,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549888379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:12,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:12,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:12,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17813834] [2022-01-18 09:25:12,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:12,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:12,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:12,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:12,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:12,873 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:14,043 INFO L93 Difference]: Finished difference Result 21014 states and 55010 transitions. [2022-01-18 09:25:14,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:14,043 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:14,072 INFO L225 Difference]: With dead ends: 21014 [2022-01-18 09:25:14,073 INFO L226 Difference]: Without dead ends: 21014 [2022-01-18 09:25:14,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:14,073 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1391 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:14,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 2968 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:14,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21014 states. [2022-01-18 09:25:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21014 to 6471. [2022-01-18 09:25:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6471 states, 6469 states have (on average 2.7078373782655745) internal successors, (17517), 6470 states have internal predecessors, (17517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6471 states to 6471 states and 17517 transitions. [2022-01-18 09:25:14,243 INFO L78 Accepts]: Start accepts. Automaton has 6471 states and 17517 transitions. Word has length 130 [2022-01-18 09:25:14,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:14,243 INFO L470 AbstractCegarLoop]: Abstraction has 6471 states and 17517 transitions. [2022-01-18 09:25:14,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6471 states and 17517 transitions. [2022-01-18 09:25:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:14,251 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:14,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:14,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 09:25:14,251 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:14,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:14,252 INFO L85 PathProgramCache]: Analyzing trace with hash -295523978, now seen corresponding path program 162 times [2022-01-18 09:25:14,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:14,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260442679] [2022-01-18 09:25:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:14,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:14,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:14,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260442679] [2022-01-18 09:25:14,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260442679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:14,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:14,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:14,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908627022] [2022-01-18 09:25:14,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:14,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:14,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:14,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:14,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:14,560 INFO L87 Difference]: Start difference. First operand 6471 states and 17517 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:15,743 INFO L93 Difference]: Finished difference Result 20250 states and 53190 transitions. [2022-01-18 09:25:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:15,743 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:15,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:15,772 INFO L225 Difference]: With dead ends: 20250 [2022-01-18 09:25:15,772 INFO L226 Difference]: Without dead ends: 20250 [2022-01-18 09:25:15,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:15,773 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1387 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:15,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 2944 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:15,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20250 states. [2022-01-18 09:25:15,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20250 to 6489. [2022-01-18 09:25:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6487 states have (on average 2.708339756435949) internal successors, (17569), 6488 states have internal predecessors, (17569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 17569 transitions. [2022-01-18 09:25:15,933 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 17569 transitions. Word has length 130 [2022-01-18 09:25:15,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:15,934 INFO L470 AbstractCegarLoop]: Abstraction has 6489 states and 17569 transitions. [2022-01-18 09:25:15,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:15,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 17569 transitions. [2022-01-18 09:25:15,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:15,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:15,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:15,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 09:25:15,941 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:15,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1403115196, now seen corresponding path program 163 times [2022-01-18 09:25:15,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:15,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67678146] [2022-01-18 09:25:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:15,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:16,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:16,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67678146] [2022-01-18 09:25:16,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67678146] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:16,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:16,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:16,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567756408] [2022-01-18 09:25:16,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:16,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:16,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:16,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:16,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:16,325 INFO L87 Difference]: Start difference. First operand 6489 states and 17569 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:17,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:17,726 INFO L93 Difference]: Finished difference Result 17062 states and 44958 transitions. [2022-01-18 09:25:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:17,726 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:17,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:17,750 INFO L225 Difference]: With dead ends: 17062 [2022-01-18 09:25:17,750 INFO L226 Difference]: Without dead ends: 17062 [2022-01-18 09:25:17,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:17,751 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1416 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 3959 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:17,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 3959 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:25:17,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17062 states. [2022-01-18 09:25:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17062 to 6345. [2022-01-18 09:25:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6345 states, 6343 states have (on average 2.704240895475327) internal successors, (17153), 6344 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:17,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6345 states to 6345 states and 17153 transitions. [2022-01-18 09:25:17,889 INFO L78 Accepts]: Start accepts. Automaton has 6345 states and 17153 transitions. Word has length 130 [2022-01-18 09:25:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:17,889 INFO L470 AbstractCegarLoop]: Abstraction has 6345 states and 17153 transitions. [2022-01-18 09:25:17,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6345 states and 17153 transitions. [2022-01-18 09:25:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:17,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:17,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:17,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 09:25:17,896 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:17,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash 880782274, now seen corresponding path program 164 times [2022-01-18 09:25:17,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:17,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764204967] [2022-01-18 09:25:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:17,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:18,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:18,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764204967] [2022-01-18 09:25:18,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764204967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:18,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:18,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:18,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025443748] [2022-01-18 09:25:18,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:18,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:18,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:18,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:18,203 INFO L87 Difference]: Start difference. First operand 6345 states and 17153 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:19,292 INFO L93 Difference]: Finished difference Result 15462 states and 40972 transitions. [2022-01-18 09:25:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:19,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:19,314 INFO L225 Difference]: With dead ends: 15462 [2022-01-18 09:25:19,315 INFO L226 Difference]: Without dead ends: 15462 [2022-01-18 09:25:19,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:19,315 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1338 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:19,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2426 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:19,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15462 states. [2022-01-18 09:25:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15462 to 6575. [2022-01-18 09:25:19,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.7109386885744713) internal successors, (17819), 6574 states have internal predecessors, (17819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 17819 transitions. [2022-01-18 09:25:19,449 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 17819 transitions. Word has length 130 [2022-01-18 09:25:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:19,449 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 17819 transitions. [2022-01-18 09:25:19,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:19,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 17819 transitions. [2022-01-18 09:25:19,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:19,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:19,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:19,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 09:25:19,457 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:19,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1715545848, now seen corresponding path program 165 times [2022-01-18 09:25:19,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:19,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480198373] [2022-01-18 09:25:19,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:19,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:19,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:19,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480198373] [2022-01-18 09:25:19,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480198373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:19,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:19,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:19,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774353772] [2022-01-18 09:25:19,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:19,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:19,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:19,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:19,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:19,810 INFO L87 Difference]: Start difference. First operand 6575 states and 17819 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:21,476 INFO L93 Difference]: Finished difference Result 15370 states and 40700 transitions. [2022-01-18 09:25:21,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:25:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:21,498 INFO L225 Difference]: With dead ends: 15370 [2022-01-18 09:25:21,499 INFO L226 Difference]: Without dead ends: 15370 [2022-01-18 09:25:21,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:25:21,499 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1472 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:21,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 2415 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:21,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15370 states. [2022-01-18 09:25:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15370 to 6557. [2022-01-18 09:25:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-18 09:25:21,634 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-18 09:25:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:21,634 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-18 09:25:21,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-18 09:25:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:21,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:21,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:21,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 09:25:21,642 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:21,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash -467982716, now seen corresponding path program 166 times [2022-01-18 09:25:21,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:21,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319632525] [2022-01-18 09:25:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:21,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:21,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:21,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319632525] [2022-01-18 09:25:21,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319632525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:21,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:21,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:21,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695344752] [2022-01-18 09:25:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:21,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:21,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:21,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:21,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:21,949 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:23,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:23,044 INFO L93 Difference]: Finished difference Result 12928 states and 34287 transitions. [2022-01-18 09:25:23,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:23,063 INFO L225 Difference]: With dead ends: 12928 [2022-01-18 09:25:23,064 INFO L226 Difference]: Without dead ends: 12928 [2022-01-18 09:25:23,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:23,064 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1136 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:23,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 2472 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2022-01-18 09:25:23,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 6521. [2022-01-18 09:25:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6519 states have (on average 2.7094646418162296) internal successors, (17663), 6520 states have internal predecessors, (17663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17663 transitions. [2022-01-18 09:25:23,181 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17663 transitions. Word has length 130 [2022-01-18 09:25:23,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:23,181 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 17663 transitions. [2022-01-18 09:25:23,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:23,181 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17663 transitions. [2022-01-18 09:25:23,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:23,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:23,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:23,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 09:25:23,189 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:23,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:23,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1777363096, now seen corresponding path program 167 times [2022-01-18 09:25:23,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:23,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365565743] [2022-01-18 09:25:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:23,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:23,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:23,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365565743] [2022-01-18 09:25:23,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365565743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:23,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:23,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:23,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669804675] [2022-01-18 09:25:23,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:23,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:23,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:23,526 INFO L87 Difference]: Start difference. First operand 6521 states and 17663 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:25,079 INFO L93 Difference]: Finished difference Result 15622 states and 41474 transitions. [2022-01-18 09:25:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:25:25,079 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:25,099 INFO L225 Difference]: With dead ends: 15622 [2022-01-18 09:25:25,099 INFO L226 Difference]: Without dead ends: 15622 [2022-01-18 09:25:25,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:25:25,100 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1324 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:25,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 2675 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-01-18 09:25:25,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 6557. [2022-01-18 09:25:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:25,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-18 09:25:25,218 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-18 09:25:25,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:25,218 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-18 09:25:25,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:25,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-18 09:25:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:25,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:25,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:25,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 09:25:25,226 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:25,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash 893654692, now seen corresponding path program 168 times [2022-01-18 09:25:25,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:25,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67684350] [2022-01-18 09:25:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:25,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:25,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:25,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67684350] [2022-01-18 09:25:25,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67684350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:25,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:25,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:25,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241844094] [2022-01-18 09:25:25,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:25,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:25,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:25,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:25,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:25,555 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:27,119 INFO L93 Difference]: Finished difference Result 16572 states and 43600 transitions. [2022-01-18 09:25:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:27,119 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:27,143 INFO L225 Difference]: With dead ends: 16572 [2022-01-18 09:25:27,143 INFO L226 Difference]: Without dead ends: 16572 [2022-01-18 09:25:27,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:25:27,144 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1487 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:27,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 2463 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16572 states. [2022-01-18 09:25:27,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16572 to 6539. [2022-01-18 09:25:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6539 states, 6537 states have (on average 2.7099586966498395) internal successors, (17715), 6538 states have internal predecessors, (17715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:27,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6539 states to 6539 states and 17715 transitions. [2022-01-18 09:25:27,282 INFO L78 Accepts]: Start accepts. Automaton has 6539 states and 17715 transitions. Word has length 130 [2022-01-18 09:25:27,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:27,283 INFO L470 AbstractCegarLoop]: Abstraction has 6539 states and 17715 transitions. [2022-01-18 09:25:27,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:27,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6539 states and 17715 transitions. [2022-01-18 09:25:27,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:27,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:27,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:27,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 09:25:27,290 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:27,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:27,291 INFO L85 PathProgramCache]: Analyzing trace with hash -523433088, now seen corresponding path program 169 times [2022-01-18 09:25:27,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:27,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843276978] [2022-01-18 09:25:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:27,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:27,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:27,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843276978] [2022-01-18 09:25:27,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843276978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:27,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:27,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:27,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924547783] [2022-01-18 09:25:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:27,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:27,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:27,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:27,615 INFO L87 Difference]: Start difference. First operand 6539 states and 17715 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:28,898 INFO L93 Difference]: Finished difference Result 18292 states and 47725 transitions. [2022-01-18 09:25:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:28,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:28,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:28,925 INFO L225 Difference]: With dead ends: 18292 [2022-01-18 09:25:28,925 INFO L226 Difference]: Without dead ends: 18292 [2022-01-18 09:25:28,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:28,926 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1305 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:28,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 2882 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18292 states. [2022-01-18 09:25:29,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18292 to 6557. [2022-01-18 09:25:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:29,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-18 09:25:29,080 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-18 09:25:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:29,080 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-18 09:25:29,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:29,080 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-18 09:25:29,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:29,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:29,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:29,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 09:25:29,088 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1175206086, now seen corresponding path program 170 times [2022-01-18 09:25:29,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:29,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838953522] [2022-01-18 09:25:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:29,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:29,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:29,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838953522] [2022-01-18 09:25:29,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838953522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:29,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:29,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:29,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373034852] [2022-01-18 09:25:29,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:29,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:29,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:29,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:29,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:29,411 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:30,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:30,492 INFO L93 Difference]: Finished difference Result 15104 states and 39493 transitions. [2022-01-18 09:25:30,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:30,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:30,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:30,515 INFO L225 Difference]: With dead ends: 15104 [2022-01-18 09:25:30,515 INFO L226 Difference]: Without dead ends: 15104 [2022-01-18 09:25:30,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:30,516 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1467 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:30,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 2511 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:25:30,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15104 states. [2022-01-18 09:25:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15104 to 6485. [2022-01-18 09:25:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6485 states, 6483 states have (on average 2.7084683017121702) internal successors, (17559), 6484 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:30,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 17559 transitions. [2022-01-18 09:25:30,657 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 17559 transitions. Word has length 130 [2022-01-18 09:25:30,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:30,657 INFO L470 AbstractCegarLoop]: Abstraction has 6485 states and 17559 transitions. [2022-01-18 09:25:30,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:30,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 17559 transitions. [2022-01-18 09:25:30,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:30,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:30,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:30,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 09:25:30,665 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1560981426, now seen corresponding path program 171 times [2022-01-18 09:25:30,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:30,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105977408] [2022-01-18 09:25:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:30,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:30,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:30,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:30,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105977408] [2022-01-18 09:25:30,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105977408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:30,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:30,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:30,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489394116] [2022-01-18 09:25:30,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:30,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:30,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:30,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:30,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:30,983 INFO L87 Difference]: Start difference. First operand 6485 states and 17559 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:32,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:32,105 INFO L93 Difference]: Finished difference Result 16290 states and 43350 transitions. [2022-01-18 09:25:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:32,105 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:32,128 INFO L225 Difference]: With dead ends: 16290 [2022-01-18 09:25:32,129 INFO L226 Difference]: Without dead ends: 16290 [2022-01-18 09:25:32,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:32,129 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1309 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:32,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 2444 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16290 states. [2022-01-18 09:25:32,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16290 to 6557. [2022-01-18 09:25:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-18 09:25:32,265 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-18 09:25:32,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:32,265 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-18 09:25:32,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:32,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-18 09:25:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:32,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:32,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:32,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 09:25:32,273 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:32,274 INFO L85 PathProgramCache]: Analyzing trace with hash -2010611438, now seen corresponding path program 172 times [2022-01-18 09:25:32,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:32,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956527340] [2022-01-18 09:25:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:32,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:32,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:32,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956527340] [2022-01-18 09:25:32,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956527340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:32,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:32,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:32,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116847139] [2022-01-18 09:25:32,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:32,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:32,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:32,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:32,593 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:33,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:33,763 INFO L93 Difference]: Finished difference Result 19104 states and 50718 transitions. [2022-01-18 09:25:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:33,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:33,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:33,791 INFO L225 Difference]: With dead ends: 19104 [2022-01-18 09:25:33,791 INFO L226 Difference]: Without dead ends: 19104 [2022-01-18 09:25:33,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:33,791 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1379 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:33,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 2803 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:33,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19104 states. [2022-01-18 09:25:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19104 to 6575. [2022-01-18 09:25:33,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6573 states have (on average 2.7109386885744713) internal successors, (17819), 6574 states have internal predecessors, (17819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 17819 transitions. [2022-01-18 09:25:33,972 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 17819 transitions. Word has length 130 [2022-01-18 09:25:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:33,972 INFO L470 AbstractCegarLoop]: Abstraction has 6575 states and 17819 transitions. [2022-01-18 09:25:33,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 17819 transitions. [2022-01-18 09:25:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:33,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:33,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:33,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 09:25:33,980 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:33,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash 660406350, now seen corresponding path program 173 times [2022-01-18 09:25:33,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:33,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382821537] [2022-01-18 09:25:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:33,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:34,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:34,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382821537] [2022-01-18 09:25:34,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382821537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:34,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:34,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:34,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340437262] [2022-01-18 09:25:34,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:34,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:34,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:34,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:34,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:34,369 INFO L87 Difference]: Start difference. First operand 6575 states and 17819 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:35,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:35,810 INFO L93 Difference]: Finished difference Result 17322 states and 45686 transitions. [2022-01-18 09:25:35,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:35,810 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:35,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:35,835 INFO L225 Difference]: With dead ends: 17322 [2022-01-18 09:25:35,835 INFO L226 Difference]: Without dead ends: 17322 [2022-01-18 09:25:35,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:35,836 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1426 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:35,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 3797 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:25:35,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17322 states. [2022-01-18 09:25:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17322 to 6521. [2022-01-18 09:25:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6519 states have (on average 2.7094646418162296) internal successors, (17663), 6520 states have internal predecessors, (17663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17663 transitions. [2022-01-18 09:25:35,983 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17663 transitions. Word has length 130 [2022-01-18 09:25:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:35,983 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 17663 transitions. [2022-01-18 09:25:35,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17663 transitions. [2022-01-18 09:25:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:35,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:35,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:35,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 09:25:35,991 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:35,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1079955944, now seen corresponding path program 174 times [2022-01-18 09:25:35,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:35,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695637241] [2022-01-18 09:25:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:35,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:36,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:36,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:36,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695637241] [2022-01-18 09:25:36,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695637241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:36,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:36,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:36,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520227843] [2022-01-18 09:25:36,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:36,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:36,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:36,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:36,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:36,395 INFO L87 Difference]: Start difference. First operand 6521 states and 17663 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:37,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:37,885 INFO L93 Difference]: Finished difference Result 18730 states and 49141 transitions. [2022-01-18 09:25:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:37,913 INFO L225 Difference]: With dead ends: 18730 [2022-01-18 09:25:37,913 INFO L226 Difference]: Without dead ends: 18730 [2022-01-18 09:25:37,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:37,913 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1381 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 4407 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:37,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 4407 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18730 states. [2022-01-18 09:25:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18730 to 6557. [2022-01-18 09:25:38,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-18 09:25:38,070 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-18 09:25:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:38,070 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-18 09:25:38,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-18 09:25:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:38,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:38,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:38,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 09:25:38,078 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:38,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:38,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1591061844, now seen corresponding path program 175 times [2022-01-18 09:25:38,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:38,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283809547] [2022-01-18 09:25:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:38,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:38,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:38,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283809547] [2022-01-18 09:25:38,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283809547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:38,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:38,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:38,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570424651] [2022-01-18 09:25:38,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:38,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:38,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:38,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:38,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:38,490 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:40,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:40,003 INFO L93 Difference]: Finished difference Result 19680 states and 51267 transitions. [2022-01-18 09:25:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:40,032 INFO L225 Difference]: With dead ends: 19680 [2022-01-18 09:25:40,032 INFO L226 Difference]: Without dead ends: 19680 [2022-01-18 09:25:40,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:40,032 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1445 mSDsluCounter, 4035 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 4390 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:40,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1445 Valid, 4390 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19680 states. [2022-01-18 09:25:40,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19680 to 6539. [2022-01-18 09:25:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6539 states, 6537 states have (on average 2.7099586966498395) internal successors, (17715), 6538 states have internal predecessors, (17715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6539 states to 6539 states and 17715 transitions. [2022-01-18 09:25:40,196 INFO L78 Accepts]: Start accepts. Automaton has 6539 states and 17715 transitions. Word has length 130 [2022-01-18 09:25:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:40,196 INFO L470 AbstractCegarLoop]: Abstraction has 6539 states and 17715 transitions. [2022-01-18 09:25:40,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 6539 states and 17715 transitions. [2022-01-18 09:25:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:40,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:40,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:40,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 09:25:40,204 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash 173974064, now seen corresponding path program 176 times [2022-01-18 09:25:40,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:40,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257917019] [2022-01-18 09:25:40,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:40,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:40,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:40,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257917019] [2022-01-18 09:25:40,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257917019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:40,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:40,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:40,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49067656] [2022-01-18 09:25:40,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:40,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:40,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:40,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:40,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:40,592 INFO L87 Difference]: Start difference. First operand 6539 states and 17715 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:42,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:42,027 INFO L93 Difference]: Finished difference Result 18916 states and 49447 transitions. [2022-01-18 09:25:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:42,027 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:42,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:42,054 INFO L225 Difference]: With dead ends: 18916 [2022-01-18 09:25:42,054 INFO L226 Difference]: Without dead ends: 18916 [2022-01-18 09:25:42,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:42,055 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1311 mSDsluCounter, 3692 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:42,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 4053 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:42,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18916 states. [2022-01-18 09:25:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18916 to 6557. [2022-01-18 09:25:42,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6557 states, 6555 states have (on average 2.7104500381388252) internal successors, (17767), 6556 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6557 states to 6557 states and 17767 transitions. [2022-01-18 09:25:42,215 INFO L78 Accepts]: Start accepts. Automaton has 6557 states and 17767 transitions. Word has length 130 [2022-01-18 09:25:42,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:42,215 INFO L470 AbstractCegarLoop]: Abstraction has 6557 states and 17767 transitions. [2022-01-18 09:25:42,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:42,216 INFO L276 IsEmpty]: Start isEmpty. Operand 6557 states and 17767 transitions. [2022-01-18 09:25:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:42,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:42,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:42,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 09:25:42,224 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:42,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1872613238, now seen corresponding path program 177 times [2022-01-18 09:25:42,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:42,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432013819] [2022-01-18 09:25:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:42,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:42,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:42,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:42,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432013819] [2022-01-18 09:25:42,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432013819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:42,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:42,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:42,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76320554] [2022-01-18 09:25:42,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:42,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:42,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:42,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:42,528 INFO L87 Difference]: Start difference. First operand 6557 states and 17767 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:43,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:43,657 INFO L93 Difference]: Finished difference Result 15728 states and 41215 transitions. [2022-01-18 09:25:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:43,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:43,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:43,681 INFO L225 Difference]: With dead ends: 15728 [2022-01-18 09:25:43,681 INFO L226 Difference]: Without dead ends: 15728 [2022-01-18 09:25:43,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:43,681 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1204 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:43,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 2846 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15728 states. [2022-01-18 09:25:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15728 to 6413. [2022-01-18 09:25:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6413 states, 6411 states have (on average 2.706442052721884) internal successors, (17351), 6412 states have internal predecessors, (17351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6413 states to 6413 states and 17351 transitions. [2022-01-18 09:25:43,837 INFO L78 Accepts]: Start accepts. Automaton has 6413 states and 17351 transitions. Word has length 130 [2022-01-18 09:25:43,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:43,837 INFO L470 AbstractCegarLoop]: Abstraction has 6413 states and 17351 transitions. [2022-01-18 09:25:43,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:43,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6413 states and 17351 transitions. [2022-01-18 09:25:43,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:43,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:43,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:43,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 09:25:43,845 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash 760473388, now seen corresponding path program 178 times [2022-01-18 09:25:43,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:43,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430224554] [2022-01-18 09:25:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:43,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:44,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:44,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430224554] [2022-01-18 09:25:44,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430224554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:44,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:44,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:44,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985432805] [2022-01-18 09:25:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:44,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:44,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:44,198 INFO L87 Difference]: Start difference. First operand 6413 states and 17351 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:45,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:45,671 INFO L93 Difference]: Finished difference Result 17002 states and 45380 transitions. [2022-01-18 09:25:45,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:25:45,671 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:45,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:45,695 INFO L225 Difference]: With dead ends: 17002 [2022-01-18 09:25:45,695 INFO L226 Difference]: Without dead ends: 17002 [2022-01-18 09:25:45,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:25:45,696 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1323 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:45,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 2658 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:25:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17002 states. [2022-01-18 09:25:45,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17002 to 6449. [2022-01-18 09:25:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6449 states, 6447 states have (on average 2.7074608344966653) internal successors, (17455), 6448 states have internal predecessors, (17455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:45,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6449 states to 6449 states and 17455 transitions. [2022-01-18 09:25:45,850 INFO L78 Accepts]: Start accepts. Automaton has 6449 states and 17455 transitions. Word has length 130 [2022-01-18 09:25:45,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:45,850 INFO L470 AbstractCegarLoop]: Abstraction has 6449 states and 17455 transitions. [2022-01-18 09:25:45,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6449 states and 17455 transitions. [2022-01-18 09:25:45,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:45,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:45,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:45,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 09:25:45,858 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:45,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1601353744, now seen corresponding path program 179 times [2022-01-18 09:25:45,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:45,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446377930] [2022-01-18 09:25:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:45,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:46,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:46,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446377930] [2022-01-18 09:25:46,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446377930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:46,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:46,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:46,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967135663] [2022-01-18 09:25:46,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:46,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:46,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:46,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:46,281 INFO L87 Difference]: Start difference. First operand 6449 states and 17455 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:47,770 INFO L93 Difference]: Finished difference Result 20304 states and 54104 transitions. [2022-01-18 09:25:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:47,800 INFO L225 Difference]: With dead ends: 20304 [2022-01-18 09:25:47,800 INFO L226 Difference]: Without dead ends: 20304 [2022-01-18 09:25:47,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:47,801 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1315 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:47,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 4135 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20304 states. [2022-01-18 09:25:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20304 to 6485. [2022-01-18 09:25:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6485 states, 6483 states have (on average 2.7084683017121702) internal successors, (17559), 6484 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 17559 transitions. [2022-01-18 09:25:47,964 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 17559 transitions. Word has length 130 [2022-01-18 09:25:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:47,965 INFO L470 AbstractCegarLoop]: Abstraction has 6485 states and 17559 transitions. [2022-01-18 09:25:47,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 17559 transitions. [2022-01-18 09:25:47,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:47,972 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:47,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:47,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 09:25:47,973 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:47,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:47,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1679075312, now seen corresponding path program 180 times [2022-01-18 09:25:47,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:47,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253114682] [2022-01-18 09:25:47,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:47,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:48,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:48,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253114682] [2022-01-18 09:25:48,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253114682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:48,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:48,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:48,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774003520] [2022-01-18 09:25:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:48,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:48,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:48,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:48,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:48,310 INFO L87 Difference]: Start difference. First operand 6485 states and 17559 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:49,470 INFO L93 Difference]: Finished difference Result 19980 states and 53168 transitions. [2022-01-18 09:25:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:49,500 INFO L225 Difference]: With dead ends: 19980 [2022-01-18 09:25:49,500 INFO L226 Difference]: Without dead ends: 19980 [2022-01-18 09:25:49,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:49,501 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1337 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:49,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 2794 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:49,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19980 states. [2022-01-18 09:25:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19980 to 6503. [2022-01-18 09:25:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-18 09:25:49,669 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-18 09:25:49,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:49,669 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-18 09:25:49,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-18 09:25:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:49,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:49,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:49,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 09:25:49,678 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:49,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash 55125804, now seen corresponding path program 181 times [2022-01-18 09:25:49,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:49,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129559813] [2022-01-18 09:25:49,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:49,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:50,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:50,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:50,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129559813] [2022-01-18 09:25:50,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129559813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:50,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:50,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:50,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630012589] [2022-01-18 09:25:50,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:50,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:50,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:50,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:50,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:50,020 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:51,578 INFO L93 Difference]: Finished difference Result 18198 states and 48136 transitions. [2022-01-18 09:25:51,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:51,579 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:51,605 INFO L225 Difference]: With dead ends: 18198 [2022-01-18 09:25:51,606 INFO L226 Difference]: Without dead ends: 18198 [2022-01-18 09:25:51,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:25:51,606 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1548 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:51,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 2454 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18198 states. [2022-01-18 09:25:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18198 to 6431. [2022-01-18 09:25:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6431 states, 6429 states have (on average 2.7069528698086796) internal successors, (17403), 6430 states have internal predecessors, (17403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6431 states to 6431 states and 17403 transitions. [2022-01-18 09:25:51,757 INFO L78 Accepts]: Start accepts. Automaton has 6431 states and 17403 transitions. Word has length 130 [2022-01-18 09:25:51,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:51,757 INFO L470 AbstractCegarLoop]: Abstraction has 6431 states and 17403 transitions. [2022-01-18 09:25:51,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 6431 states and 17403 transitions. [2022-01-18 09:25:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:51,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:51,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:51,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 09:25:51,765 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:51,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:51,765 INFO L85 PathProgramCache]: Analyzing trace with hash -419121350, now seen corresponding path program 182 times [2022-01-18 09:25:51,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:51,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397855091] [2022-01-18 09:25:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:51,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:52,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:52,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397855091] [2022-01-18 09:25:52,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397855091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:52,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:52,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:52,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546408652] [2022-01-18 09:25:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:52,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:52,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:52,164 INFO L87 Difference]: Start difference. First operand 6431 states and 17403 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:53,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:53,656 INFO L93 Difference]: Finished difference Result 19842 states and 52219 transitions. [2022-01-18 09:25:53,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:53,656 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:53,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:53,685 INFO L225 Difference]: With dead ends: 19842 [2022-01-18 09:25:53,685 INFO L226 Difference]: Without dead ends: 19842 [2022-01-18 09:25:53,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:53,685 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1206 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 4155 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:53,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 4155 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19842 states. [2022-01-18 09:25:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19842 to 6503. [2022-01-18 09:25:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:53,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-18 09:25:53,848 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-18 09:25:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:53,848 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-18 09:25:53,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:53,848 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-18 09:25:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:53,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:53,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:53,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 09:25:53,856 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:53,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1433659590, now seen corresponding path program 183 times [2022-01-18 09:25:53,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:53,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221129568] [2022-01-18 09:25:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:53,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:54,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:54,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221129568] [2022-01-18 09:25:54,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221129568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:54,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:54,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:25:54,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467016842] [2022-01-18 09:25:54,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:54,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:25:54,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:54,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:25:54,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:25:54,194 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:55,926 INFO L93 Difference]: Finished difference Result 22656 states and 59587 transitions. [2022-01-18 09:25:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:25:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:55,960 INFO L225 Difference]: With dead ends: 22656 [2022-01-18 09:25:55,960 INFO L226 Difference]: Without dead ends: 22656 [2022-01-18 09:25:55,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=475, Invalid=1165, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:25:55,960 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1472 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:55,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 2662 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22656 states. [2022-01-18 09:25:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22656 to 6521. [2022-01-18 09:25:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6519 states have (on average 2.7094646418162296) internal successors, (17663), 6520 states have internal predecessors, (17663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 17663 transitions. [2022-01-18 09:25:56,138 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 17663 transitions. Word has length 130 [2022-01-18 09:25:56,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:56,138 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 17663 transitions. [2022-01-18 09:25:56,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:56,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 17663 transitions. [2022-01-18 09:25:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:56,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:56,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:56,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 09:25:56,146 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:56,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1237358198, now seen corresponding path program 184 times [2022-01-18 09:25:56,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:56,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508711301] [2022-01-18 09:25:56,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:56,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:56,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:56,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508711301] [2022-01-18 09:25:56,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508711301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:56,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:56,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:25:56,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770338665] [2022-01-18 09:25:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:56,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:25:56,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:56,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:25:56,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:25:56,458 INFO L87 Difference]: Start difference. First operand 6521 states and 17663 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:57,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:57,605 INFO L93 Difference]: Finished difference Result 20874 states and 54555 transitions. [2022-01-18 09:25:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:25:57,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:57,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:57,635 INFO L225 Difference]: With dead ends: 20874 [2022-01-18 09:25:57,635 INFO L226 Difference]: Without dead ends: 20874 [2022-01-18 09:25:57,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:57,636 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 1300 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:57,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 2717 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:25:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20874 states. [2022-01-18 09:25:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20874 to 6467. [2022-01-18 09:25:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6465 states have (on average 2.7079659706109824) internal successors, (17507), 6466 states have internal predecessors, (17507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 17507 transitions. [2022-01-18 09:25:57,826 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 17507 transitions. Word has length 130 [2022-01-18 09:25:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:57,826 INFO L470 AbstractCegarLoop]: Abstraction has 6467 states and 17507 transitions. [2022-01-18 09:25:57,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 17507 transitions. [2022-01-18 09:25:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:57,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:57,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:57,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 09:25:57,834 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:57,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1679785432, now seen corresponding path program 185 times [2022-01-18 09:25:57,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:57,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310394038] [2022-01-18 09:25:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:57,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:58,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:58,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:58,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310394038] [2022-01-18 09:25:58,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310394038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:58,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:58,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:25:58,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195969013] [2022-01-18 09:25:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:58,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:25:58,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:58,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:25:58,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:25:58,225 INFO L87 Difference]: Start difference. First operand 6467 states and 17507 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:59,668 INFO L93 Difference]: Finished difference Result 19354 states and 50863 transitions. [2022-01-18 09:25:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:25:59,668 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:25:59,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:59,696 INFO L225 Difference]: With dead ends: 19354 [2022-01-18 09:25:59,696 INFO L226 Difference]: Without dead ends: 19354 [2022-01-18 09:25:59,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:25:59,697 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1382 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:59,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 4112 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19354 states. [2022-01-18 09:25:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19354 to 6503. [2022-01-18 09:25:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-18 09:25:59,856 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-18 09:25:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:59,856 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-18 09:25:59,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:59,856 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-18 09:25:59,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:25:59,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:59,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:59,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 09:25:59,864 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash 55835924, now seen corresponding path program 186 times [2022-01-18 09:25:59,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:59,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761394067] [2022-01-18 09:25:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:59,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:00,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:00,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761394067] [2022-01-18 09:26:00,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761394067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:00,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:00,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:26:00,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638333039] [2022-01-18 09:26:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:00,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:26:00,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:26:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:26:00,250 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:01,763 INFO L93 Difference]: Finished difference Result 20304 states and 52989 transitions. [2022-01-18 09:26:01,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:01,763 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:01,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:01,792 INFO L225 Difference]: With dead ends: 20304 [2022-01-18 09:26:01,792 INFO L226 Difference]: Without dead ends: 20304 [2022-01-18 09:26:01,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:26:01,793 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1526 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:01,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 4452 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20304 states. [2022-01-18 09:26:01,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20304 to 6485. [2022-01-18 09:26:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6485 states, 6483 states have (on average 2.7084683017121702) internal successors, (17559), 6484 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 17559 transitions. [2022-01-18 09:26:01,958 INFO L78 Accepts]: Start accepts. Automaton has 6485 states and 17559 transitions. Word has length 130 [2022-01-18 09:26:01,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:01,958 INFO L470 AbstractCegarLoop]: Abstraction has 6485 states and 17559 transitions. [2022-01-18 09:26:01,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6485 states and 17559 transitions. [2022-01-18 09:26:01,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:01,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:01,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:01,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 09:26:01,966 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:01,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:01,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1361251856, now seen corresponding path program 187 times [2022-01-18 09:26:01,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:01,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109553936] [2022-01-18 09:26:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:01,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:02,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:02,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:02,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109553936] [2022-01-18 09:26:02,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109553936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:02,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:02,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:02,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295090812] [2022-01-18 09:26:02,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:02,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:02,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:02,313 INFO L87 Difference]: Start difference. First operand 6485 states and 17559 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:03,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:03,430 INFO L93 Difference]: Finished difference Result 19540 states and 51169 transitions. [2022-01-18 09:26:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:03,431 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:03,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:03,459 INFO L225 Difference]: With dead ends: 19540 [2022-01-18 09:26:03,459 INFO L226 Difference]: Without dead ends: 19540 [2022-01-18 09:26:03,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:03,459 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 1413 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:03,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 2568 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:03,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19540 states. [2022-01-18 09:26:03,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19540 to 6503. [2022-01-18 09:26:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6501 states have (on average 2.708967851099831) internal successors, (17611), 6502 states have internal predecessors, (17611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 17611 transitions. [2022-01-18 09:26:03,622 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 17611 transitions. Word has length 130 [2022-01-18 09:26:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:03,622 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 17611 transitions. [2022-01-18 09:26:03,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 17611 transitions. [2022-01-18 09:26:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:03,630 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:03,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:03,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 09:26:03,631 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash 337387318, now seen corresponding path program 188 times [2022-01-18 09:26:03,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:03,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184055461] [2022-01-18 09:26:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:03,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:03,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:03,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184055461] [2022-01-18 09:26:03,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184055461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:03,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:03,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:03,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477811777] [2022-01-18 09:26:03,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:03,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:03,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:03,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:03,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:03,960 INFO L87 Difference]: Start difference. First operand 6503 states and 17611 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:05,458 INFO L93 Difference]: Finished difference Result 16352 states and 42937 transitions. [2022-01-18 09:26:05,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:05,458 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:05,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:05,480 INFO L225 Difference]: With dead ends: 16352 [2022-01-18 09:26:05,480 INFO L226 Difference]: Without dead ends: 16352 [2022-01-18 09:26:05,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:26:05,481 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1378 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:05,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 2538 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16352 states. [2022-01-18 09:26:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16352 to 6377. [2022-01-18 09:26:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6377 states, 6375 states have (on average 2.7054117647058824) internal successors, (17247), 6376 states have internal predecessors, (17247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:05,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6377 states to 6377 states and 17247 transitions. [2022-01-18 09:26:05,614 INFO L78 Accepts]: Start accepts. Automaton has 6377 states and 17247 transitions. Word has length 130 [2022-01-18 09:26:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:05,614 INFO L470 AbstractCegarLoop]: Abstraction has 6377 states and 17247 transitions. [2022-01-18 09:26:05,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6377 states and 17247 transitions. [2022-01-18 09:26:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:05,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:05,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:05,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 09:26:05,622 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:05,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash 310603016, now seen corresponding path program 189 times [2022-01-18 09:26:05,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:05,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19543438] [2022-01-18 09:26:05,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:05,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:05,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19543438] [2022-01-18 09:26:05,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19543438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:05,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:05,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:05,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107471035] [2022-01-18 09:26:05,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:05,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:05,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:05,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:05,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:05,937 INFO L87 Difference]: Start difference. First operand 6377 states and 17247 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:06,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:06,779 INFO L93 Difference]: Finished difference Result 6918 states and 18387 transitions. [2022-01-18 09:26:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:26:06,779 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:06,789 INFO L225 Difference]: With dead ends: 6918 [2022-01-18 09:26:06,789 INFO L226 Difference]: Without dead ends: 6918 [2022-01-18 09:26:06,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:26:06,789 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 791 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:06,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2370 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:06,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2022-01-18 09:26:06,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 6026. [2022-01-18 09:26:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:06,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-18 09:26:06,870 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-18 09:26:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:06,870 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-18 09:26:06,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-18 09:26:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:06,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:06,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:06,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 09:26:06,877 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1528824236, now seen corresponding path program 190 times [2022-01-18 09:26:06,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:06,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977922226] [2022-01-18 09:26:06,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:06,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:07,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:07,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977922226] [2022-01-18 09:26:07,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977922226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:07,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:07,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:07,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635976508] [2022-01-18 09:26:07,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:07,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:07,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:07,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:07,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:07,251 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:08,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:08,532 INFO L93 Difference]: Finished difference Result 10444 states and 28329 transitions. [2022-01-18 09:26:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:26:08,533 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:08,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:08,547 INFO L225 Difference]: With dead ends: 10444 [2022-01-18 09:26:08,547 INFO L226 Difference]: Without dead ends: 10444 [2022-01-18 09:26:08,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:26:08,548 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 1104 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:08,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2260 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:08,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-01-18 09:26:08,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 6154. [2022-01-18 09:26:08,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:26:08,648 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:26:08,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:08,648 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:26:08,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:26:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:08,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:08,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:08,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 09:26:08,656 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:08,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:08,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1459609368, now seen corresponding path program 191 times [2022-01-18 09:26:08,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:08,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480642888] [2022-01-18 09:26:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:08,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:09,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:09,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480642888] [2022-01-18 09:26:09,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480642888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:09,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:09,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:09,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338723764] [2022-01-18 09:26:09,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:09,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:09,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:09,024 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:10,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:10,296 INFO L93 Difference]: Finished difference Result 13929 states and 37685 transitions. [2022-01-18 09:26:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:10,296 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:10,316 INFO L225 Difference]: With dead ends: 13929 [2022-01-18 09:26:10,317 INFO L226 Difference]: Without dead ends: 13929 [2022-01-18 09:26:10,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:10,317 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1075 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:10,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 2429 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:10,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13929 states. [2022-01-18 09:26:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13929 to 6170. [2022-01-18 09:26:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:10,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:26:10,441 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:26:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:10,441 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:26:10,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:26:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:10,448 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:10,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:10,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 09:26:10,448 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:10,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:10,449 INFO L85 PathProgramCache]: Analyzing trace with hash 473530796, now seen corresponding path program 192 times [2022-01-18 09:26:10,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:10,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530448238] [2022-01-18 09:26:10,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:10,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:10,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:10,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530448238] [2022-01-18 09:26:10,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530448238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:10,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:10,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:10,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866398634] [2022-01-18 09:26:10,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:10,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:10,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:10,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:10,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:10,780 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:11,894 INFO L93 Difference]: Finished difference Result 13641 states and 36839 transitions. [2022-01-18 09:26:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:11,894 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:11,914 INFO L225 Difference]: With dead ends: 13641 [2022-01-18 09:26:11,914 INFO L226 Difference]: Without dead ends: 13641 [2022-01-18 09:26:11,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:11,915 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1239 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:11,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 2401 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13641 states. [2022-01-18 09:26:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13641 to 6202. [2022-01-18 09:26:12,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:12,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-18 09:26:12,057 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-18 09:26:12,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:12,057 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-18 09:26:12,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:12,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-18 09:26:12,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:12,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:12,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:12,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 09:26:12,065 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:12,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:12,066 INFO L85 PathProgramCache]: Analyzing trace with hash -541007444, now seen corresponding path program 193 times [2022-01-18 09:26:12,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:12,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213677450] [2022-01-18 09:26:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:12,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:12,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:12,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213677450] [2022-01-18 09:26:12,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213677450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:12,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:12,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:12,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126547667] [2022-01-18 09:26:12,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:12,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:12,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:12,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:12,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:12,388 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:13,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:13,492 INFO L93 Difference]: Finished difference Result 13353 states and 35993 transitions. [2022-01-18 09:26:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:13,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:13,512 INFO L225 Difference]: With dead ends: 13353 [2022-01-18 09:26:13,512 INFO L226 Difference]: Without dead ends: 13353 [2022-01-18 09:26:13,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:13,512 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1388 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:13,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 2338 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13353 states. [2022-01-18 09:26:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13353 to 6218. [2022-01-18 09:26:13,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-18 09:26:13,628 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-18 09:26:13,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:13,628 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-18 09:26:13,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-18 09:26:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:13,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:13,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:13,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 09:26:13,636 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:13,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:13,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2130010344, now seen corresponding path program 194 times [2022-01-18 09:26:13,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:13,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168042167] [2022-01-18 09:26:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:13,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:13,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:13,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168042167] [2022-01-18 09:26:13,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168042167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:13,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:13,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:13,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221055358] [2022-01-18 09:26:13,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:13,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:13,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:13,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:13,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:13,977 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:15,375 INFO L93 Difference]: Finished difference Result 11528 states and 30920 transitions. [2022-01-18 09:26:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:26:15,375 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:15,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:15,392 INFO L225 Difference]: With dead ends: 11528 [2022-01-18 09:26:15,392 INFO L226 Difference]: Without dead ends: 11528 [2022-01-18 09:26:15,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:26:15,392 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1464 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:15,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1464 Valid, 2259 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11528 states. [2022-01-18 09:26:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11528 to 6154. [2022-01-18 09:26:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:15,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:26:15,505 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:26:15,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:15,505 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:26:15,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:26:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:15,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:15,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:15,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 09:26:15,513 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1402626364, now seen corresponding path program 195 times [2022-01-18 09:26:15,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:15,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894682777] [2022-01-18 09:26:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:15,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:15,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:15,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894682777] [2022-01-18 09:26:15,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894682777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:15,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:15,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:15,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451477193] [2022-01-18 09:26:15,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:15,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:15,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:15,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:15,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:15,841 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:16,991 INFO L93 Difference]: Finished difference Result 13252 states and 35375 transitions. [2022-01-18 09:26:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:17,011 INFO L225 Difference]: With dead ends: 13252 [2022-01-18 09:26:17,011 INFO L226 Difference]: Without dead ends: 13252 [2022-01-18 09:26:17,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:17,011 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1185 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:17,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 2570 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:17,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13252 states. [2022-01-18 09:26:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13252 to 6186. [2022-01-18 09:26:17,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-18 09:26:17,125 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-18 09:26:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:17,125 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-18 09:26:17,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-18 09:26:17,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:17,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:17,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:17,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 09:26:17,133 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:17,133 INFO L85 PathProgramCache]: Analyzing trace with hash -959200768, now seen corresponding path program 196 times [2022-01-18 09:26:17,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:17,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536344891] [2022-01-18 09:26:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:17,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:17,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536344891] [2022-01-18 09:26:17,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536344891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:17,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:17,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:17,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185105055] [2022-01-18 09:26:17,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:17,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:17,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:17,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:17,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:17,454 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:18,618 INFO L93 Difference]: Finished difference Result 16380 states and 43703 transitions. [2022-01-18 09:26:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:18,642 INFO L225 Difference]: With dead ends: 16380 [2022-01-18 09:26:18,642 INFO L226 Difference]: Without dead ends: 16380 [2022-01-18 09:26:18,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:18,642 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1275 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:18,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1275 Valid, 2835 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:18,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16380 states. [2022-01-18 09:26:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16380 to 6218. [2022-01-18 09:26:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-18 09:26:18,779 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-18 09:26:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:18,779 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-18 09:26:18,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-18 09:26:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:18,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:18,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:18,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 09:26:18,786 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:18,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:18,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1973739008, now seen corresponding path program 197 times [2022-01-18 09:26:18,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:18,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827908988] [2022-01-18 09:26:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:18,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:19,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:19,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827908988] [2022-01-18 09:26:19,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827908988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:19,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:19,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:19,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172123336] [2022-01-18 09:26:19,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:19,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:19,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:19,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:19,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:19,105 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:20,240 INFO L93 Difference]: Finished difference Result 16092 states and 42857 transitions. [2022-01-18 09:26:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:20,263 INFO L225 Difference]: With dead ends: 16092 [2022-01-18 09:26:20,263 INFO L226 Difference]: Without dead ends: 16092 [2022-01-18 09:26:20,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:20,263 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1189 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:20,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 2576 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16092 states. [2022-01-18 09:26:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16092 to 6234. [2022-01-18 09:26:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:20,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-18 09:26:20,397 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-18 09:26:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:20,397 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-18 09:26:20,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-18 09:26:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:20,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:20,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:20,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 09:26:20,405 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:20,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:20,405 INFO L85 PathProgramCache]: Analyzing trace with hash 697278780, now seen corresponding path program 198 times [2022-01-18 09:26:20,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:20,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004639948] [2022-01-18 09:26:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:20,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:20,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:20,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:20,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004639948] [2022-01-18 09:26:20,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004639948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:20,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:20,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:20,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839768977] [2022-01-18 09:26:20,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:20,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:20,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:20,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:20,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:20,721 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:21,854 INFO L93 Difference]: Finished difference Result 14267 states and 37784 transitions. [2022-01-18 09:26:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:21,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:21,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:21,876 INFO L225 Difference]: With dead ends: 14267 [2022-01-18 09:26:21,876 INFO L226 Difference]: Without dead ends: 14267 [2022-01-18 09:26:21,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:21,876 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1330 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:21,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 2551 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:21,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14267 states. [2022-01-18 09:26:21,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14267 to 6170. [2022-01-18 09:26:21,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:22,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:26:22,004 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:26:22,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:22,004 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:26:22,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:22,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:26:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:22,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:22,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:22,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 09:26:22,012 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash 223031626, now seen corresponding path program 199 times [2022-01-18 09:26:22,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:22,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706514559] [2022-01-18 09:26:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:22,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:22,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:22,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:22,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706514559] [2022-01-18 09:26:22,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706514559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:22,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:22,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:22,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156233599] [2022-01-18 09:26:22,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:22,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:22,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:22,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:22,352 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:23,846 INFO L93 Difference]: Finished difference Result 12895 states and 34347 transitions. [2022-01-18 09:26:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:26:23,846 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:23,866 INFO L225 Difference]: With dead ends: 12895 [2022-01-18 09:26:23,866 INFO L226 Difference]: Without dead ends: 12895 [2022-01-18 09:26:23,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=1003, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:26:23,866 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1295 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:23,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 2749 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:26:23,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12895 states. [2022-01-18 09:26:23,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12895 to 6234. [2022-01-18 09:26:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:23,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-18 09:26:23,986 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-18 09:26:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:23,986 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-18 09:26:23,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-18 09:26:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:23,994 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:23,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:23,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 09:26:23,994 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:23,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash -791506614, now seen corresponding path program 200 times [2022-01-18 09:26:23,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:23,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482347216] [2022-01-18 09:26:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:23,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:24,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:24,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482347216] [2022-01-18 09:26:24,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482347216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:24,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:24,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:26:24,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267984314] [2022-01-18 09:26:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:24,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:26:24,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:26:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:26:24,389 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:25,847 INFO L93 Difference]: Finished difference Result 15597 states and 41465 transitions. [2022-01-18 09:26:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:25,870 INFO L225 Difference]: With dead ends: 15597 [2022-01-18 09:26:25,870 INFO L226 Difference]: Without dead ends: 15597 [2022-01-18 09:26:25,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=393, Invalid=1329, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:26:25,871 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1327 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 4163 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:25,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 4163 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15597 states. [2022-01-18 09:26:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15597 to 6250. [2022-01-18 09:26:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 6248 states have (on average 2.732234314980794) internal successors, (17071), 6249 states have internal predecessors, (17071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 17071 transitions. [2022-01-18 09:26:26,005 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 17071 transitions. Word has length 130 [2022-01-18 09:26:26,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:26,005 INFO L470 AbstractCegarLoop]: Abstraction has 6250 states and 17071 transitions. [2022-01-18 09:26:26,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 17071 transitions. [2022-01-18 09:26:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:26,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:26,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:26,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 09:26:26,013 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:26,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1879511174, now seen corresponding path program 201 times [2022-01-18 09:26:26,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:26,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059244712] [2022-01-18 09:26:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:26,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:26,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:26,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059244712] [2022-01-18 09:26:26,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059244712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:26,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:26,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:26,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295020103] [2022-01-18 09:26:26,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:26,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:26,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:26,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:26,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:26,392 INFO L87 Difference]: Start difference. First operand 6250 states and 17071 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:27,495 INFO L93 Difference]: Finished difference Result 13772 states and 36392 transitions. [2022-01-18 09:26:27,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:27,495 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:27,515 INFO L225 Difference]: With dead ends: 13772 [2022-01-18 09:26:27,515 INFO L226 Difference]: Without dead ends: 13772 [2022-01-18 09:26:27,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:27,515 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1331 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:27,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 2505 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:27,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13772 states. [2022-01-18 09:26:27,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13772 to 6202. [2022-01-18 09:26:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-18 09:26:27,631 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-18 09:26:27,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:27,631 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-18 09:26:27,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-18 09:26:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:27,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:27,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:27,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 09:26:27,638 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:27,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:27,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1973028888, now seen corresponding path program 202 times [2022-01-18 09:26:27,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:27,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090189380] [2022-01-18 09:26:27,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:27,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:27,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:27,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:27,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090189380] [2022-01-18 09:26:27,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090189380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:27,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:27,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:27,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776749783] [2022-01-18 09:26:27,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:27,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:27,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:27,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:27,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:27,979 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:29,074 INFO L93 Difference]: Finished difference Result 12469 states and 33137 transitions. [2022-01-18 09:26:29,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:29,075 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:29,092 INFO L225 Difference]: With dead ends: 12469 [2022-01-18 09:26:29,092 INFO L226 Difference]: Without dead ends: 12469 [2022-01-18 09:26:29,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:29,093 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1268 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:29,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 2492 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:29,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12469 states. [2022-01-18 09:26:29,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12469 to 6234. [2022-01-18 09:26:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-18 09:26:29,211 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-18 09:26:29,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:29,212 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-18 09:26:29,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-18 09:26:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:29,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:29,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:29,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 09:26:29,219 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:29,220 INFO L85 PathProgramCache]: Analyzing trace with hash 697988900, now seen corresponding path program 203 times [2022-01-18 09:26:29,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:29,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877170737] [2022-01-18 09:26:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:29,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:29,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:29,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877170737] [2022-01-18 09:26:29,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877170737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:29,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:29,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:29,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353840133] [2022-01-18 09:26:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:29,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:29,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:29,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:29,564 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:31,206 INFO L93 Difference]: Finished difference Result 13277 states and 35000 transitions. [2022-01-18 09:26:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:31,226 INFO L225 Difference]: With dead ends: 13277 [2022-01-18 09:26:31,226 INFO L226 Difference]: Without dead ends: 13277 [2022-01-18 09:26:31,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=426, Invalid=1056, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:26:31,226 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1396 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:31,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 2725 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:31,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13277 states. [2022-01-18 09:26:31,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13277 to 6218. [2022-01-18 09:26:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-18 09:26:31,349 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-18 09:26:31,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:31,349 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-18 09:26:31,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-18 09:26:31,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:31,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:31,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:31,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 09:26:31,357 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash -719098880, now seen corresponding path program 204 times [2022-01-18 09:26:31,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:31,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380446481] [2022-01-18 09:26:31,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:31,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:31,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:31,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:31,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380446481] [2022-01-18 09:26:31,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380446481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:31,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:31,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:31,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251285338] [2022-01-18 09:26:31,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:31,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:31,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:31,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:31,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:31,660 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:32,733 INFO L93 Difference]: Finished difference Result 12622 states and 33387 transitions. [2022-01-18 09:26:32,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:32,733 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:32,752 INFO L225 Difference]: With dead ends: 12622 [2022-01-18 09:26:32,752 INFO L226 Difference]: Without dead ends: 12622 [2022-01-18 09:26:32,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:32,753 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1315 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:32,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 2427 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:26:32,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12622 states. [2022-01-18 09:26:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12622 to 6234. [2022-01-18 09:26:32,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-18 09:26:32,869 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-18 09:26:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:32,869 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-18 09:26:32,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-18 09:26:32,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:32,876 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:32,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:32,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 09:26:32,877 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:32,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:32,877 INFO L85 PathProgramCache]: Analyzing trace with hash 979540294, now seen corresponding path program 205 times [2022-01-18 09:26:32,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:32,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163264479] [2022-01-18 09:26:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:32,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:33,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:33,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163264479] [2022-01-18 09:26:33,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163264479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:33,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:33,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:26:33,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740307807] [2022-01-18 09:26:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:33,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:26:33,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:26:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:26:33,471 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:35,722 INFO L93 Difference]: Finished difference Result 10818 states and 28252 transitions. [2022-01-18 09:26:35,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:26:35,723 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:35,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:35,737 INFO L225 Difference]: With dead ends: 10818 [2022-01-18 09:26:35,737 INFO L226 Difference]: Without dead ends: 10818 [2022-01-18 09:26:35,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=520, Invalid=1642, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:26:35,737 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 1309 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:35,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 3113 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:35,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2022-01-18 09:26:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 6298. [2022-01-18 09:26:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6298 states, 6296 states have (on average 2.7293519695044473) internal successors, (17184), 6297 states have internal predecessors, (17184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:35,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6298 states to 6298 states and 17184 transitions. [2022-01-18 09:26:35,838 INFO L78 Accepts]: Start accepts. Automaton has 6298 states and 17184 transitions. Word has length 130 [2022-01-18 09:26:35,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:35,839 INFO L470 AbstractCegarLoop]: Abstraction has 6298 states and 17184 transitions. [2022-01-18 09:26:35,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:35,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6298 states and 17184 transitions. [2022-01-18 09:26:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:35,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:35,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:35,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 09:26:35,846 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:35,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1864894330, now seen corresponding path program 206 times [2022-01-18 09:26:35,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:35,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481008322] [2022-01-18 09:26:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:35,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:36,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:36,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481008322] [2022-01-18 09:26:36,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481008322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:36,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:36,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:36,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413152754] [2022-01-18 09:26:36,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:36,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:36,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:36,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:36,210 INFO L87 Difference]: Start difference. First operand 6298 states and 17184 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:37,716 INFO L93 Difference]: Finished difference Result 9607 states and 25527 transitions. [2022-01-18 09:26:37,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:26:37,716 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:37,728 INFO L225 Difference]: With dead ends: 9607 [2022-01-18 09:26:37,729 INFO L226 Difference]: Without dead ends: 9607 [2022-01-18 09:26:37,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=951, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:26:37,729 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1301 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:37,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 2381 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2022-01-18 09:26:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 6154. [2022-01-18 09:26:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:26:37,821 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:26:37,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:37,822 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:26:37,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:26:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:37,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:37,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:37,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 09:26:37,829 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:37,829 INFO L85 PathProgramCache]: Analyzing trace with hash -907306614, now seen corresponding path program 207 times [2022-01-18 09:26:37,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:37,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596187498] [2022-01-18 09:26:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:37,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:38,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:38,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596187498] [2022-01-18 09:26:38,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596187498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:38,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:38,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:38,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789915197] [2022-01-18 09:26:38,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:38,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:38,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:38,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:38,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:38,180 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:39,807 INFO L93 Difference]: Finished difference Result 16857 states and 44995 transitions. [2022-01-18 09:26:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:39,831 INFO L225 Difference]: With dead ends: 16857 [2022-01-18 09:26:39,831 INFO L226 Difference]: Without dead ends: 16857 [2022-01-18 09:26:39,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:26:39,832 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1517 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:39,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 2934 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:26:39,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16857 states. [2022-01-18 09:26:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16857 to 6234. [2022-01-18 09:26:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6232 states have (on average 2.731707317073171) internal successors, (17024), 6233 states have internal predecessors, (17024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:39,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 17024 transitions. [2022-01-18 09:26:39,950 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 17024 transitions. Word has length 130 [2022-01-18 09:26:39,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:39,950 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 17024 transitions. [2022-01-18 09:26:39,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:39,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 17024 transitions. [2022-01-18 09:26:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:39,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:39,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:39,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 09:26:39,956 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:39,957 INFO L85 PathProgramCache]: Analyzing trace with hash 791332560, now seen corresponding path program 208 times [2022-01-18 09:26:39,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:39,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524943317] [2022-01-18 09:26:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:39,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:40,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:40,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524943317] [2022-01-18 09:26:40,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524943317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:40,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:40,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:26:40,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335255528] [2022-01-18 09:26:40,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:40,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:26:40,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:26:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:26:40,338 INFO L87 Difference]: Start difference. First operand 6234 states and 17024 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:41,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:41,967 INFO L93 Difference]: Finished difference Result 16761 states and 44713 transitions. [2022-01-18 09:26:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:41,968 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:41,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:41,991 INFO L225 Difference]: With dead ends: 16761 [2022-01-18 09:26:41,992 INFO L226 Difference]: Without dead ends: 16761 [2022-01-18 09:26:41,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:26:41,992 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1417 mSDsluCounter, 4071 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:41,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 4382 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16761 states. [2022-01-18 09:26:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16761 to 6218. [2022-01-18 09:26:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-18 09:26:42,130 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-18 09:26:42,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:42,130 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-18 09:26:42,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-18 09:26:42,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:42,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:42,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:42,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 09:26:42,138 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:42,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:42,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2038895692, now seen corresponding path program 209 times [2022-01-18 09:26:42,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:42,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229691038] [2022-01-18 09:26:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:42,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:42,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:42,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:42,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229691038] [2022-01-18 09:26:42,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229691038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:42,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:42,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:26:42,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748968843] [2022-01-18 09:26:42,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:42,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:26:42,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:42,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:26:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:26:42,519 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:43,943 INFO L93 Difference]: Finished difference Result 14384 states and 38449 transitions. [2022-01-18 09:26:43,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:43,943 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:43,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:43,963 INFO L225 Difference]: With dead ends: 14384 [2022-01-18 09:26:43,963 INFO L226 Difference]: Without dead ends: 14384 [2022-01-18 09:26:43,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:26:43,964 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1304 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:43,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 4382 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14384 states. [2022-01-18 09:26:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14384 to 6186. [2022-01-18 09:26:44,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-18 09:26:44,082 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-18 09:26:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:44,082 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-18 09:26:44,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-18 09:26:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:44,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:44,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:44,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 09:26:44,089 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:44,090 INFO L85 PathProgramCache]: Analyzing trace with hash 729515312, now seen corresponding path program 210 times [2022-01-18 09:26:44,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:44,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619789739] [2022-01-18 09:26:44,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:44,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:44,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:44,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619789739] [2022-01-18 09:26:44,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619789739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:44,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:44,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:44,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482069728] [2022-01-18 09:26:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:44,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:44,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:44,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:44,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:44,437 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:45,881 INFO L93 Difference]: Finished difference Result 11561 states and 30935 transitions. [2022-01-18 09:26:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:26:45,881 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:45,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:45,897 INFO L225 Difference]: With dead ends: 11561 [2022-01-18 09:26:45,897 INFO L226 Difference]: Without dead ends: 11561 [2022-01-18 09:26:45,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=382, Invalid=950, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:26:45,897 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1184 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:45,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 2952 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:45,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11561 states. [2022-01-18 09:26:45,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11561 to 6218. [2022-01-18 09:26:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-18 09:26:46,001 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-18 09:26:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:46,001 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-18 09:26:46,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-18 09:26:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:46,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:46,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:46,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 09:26:46,008 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:46,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:46,009 INFO L85 PathProgramCache]: Analyzing trace with hash -894434196, now seen corresponding path program 211 times [2022-01-18 09:26:46,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:46,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134843103] [2022-01-18 09:26:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:46,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:46,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:46,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134843103] [2022-01-18 09:26:46,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134843103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:46,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:46,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:46,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669680293] [2022-01-18 09:26:46,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:46,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:46,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:46,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:46,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:46,330 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:47,455 INFO L93 Difference]: Finished difference Result 12369 states and 32798 transitions. [2022-01-18 09:26:47,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:47,455 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:47,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:47,472 INFO L225 Difference]: With dead ends: 12369 [2022-01-18 09:26:47,473 INFO L226 Difference]: Without dead ends: 12369 [2022-01-18 09:26:47,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:47,473 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1144 mSDsluCounter, 2691 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:47,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 3076 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:47,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2022-01-18 09:26:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 6202. [2022-01-18 09:26:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:47,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-18 09:26:47,579 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-18 09:26:47,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:47,579 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-18 09:26:47,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:47,579 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-18 09:26:47,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:47,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:47,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:47,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 09:26:47,586 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1983445320, now seen corresponding path program 212 times [2022-01-18 09:26:47,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:47,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982414521] [2022-01-18 09:26:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:47,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:47,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:47,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982414521] [2022-01-18 09:26:47,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982414521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:47,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:47,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:26:47,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386264550] [2022-01-18 09:26:47,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:47,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:26:47,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:47,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:26:47,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:26:47,963 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:49,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:49,376 INFO L93 Difference]: Finished difference Result 15576 states and 41184 transitions. [2022-01-18 09:26:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:49,376 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:49,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:49,397 INFO L225 Difference]: With dead ends: 15576 [2022-01-18 09:26:49,397 INFO L226 Difference]: Without dead ends: 15576 [2022-01-18 09:26:49,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:26:49,398 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1400 mSDsluCounter, 3907 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:49,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1400 Valid, 4275 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15576 states. [2022-01-18 09:26:49,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15576 to 6218. [2022-01-18 09:26:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6216 states have (on average 2.731177606177606) internal successors, (16977), 6217 states have internal predecessors, (16977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 16977 transitions. [2022-01-18 09:26:49,523 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 16977 transitions. Word has length 130 [2022-01-18 09:26:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:49,523 INFO L470 AbstractCegarLoop]: Abstraction has 6218 states and 16977 transitions. [2022-01-18 09:26:49,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 16977 transitions. [2022-01-18 09:26:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:49,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:49,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:49,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 09:26:49,530 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:49,531 INFO L85 PathProgramCache]: Analyzing trace with hash -612882802, now seen corresponding path program 213 times [2022-01-18 09:26:49,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:49,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141026669] [2022-01-18 09:26:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:49,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:49,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:49,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141026669] [2022-01-18 09:26:49,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141026669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:49,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:49,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:49,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024777343] [2022-01-18 09:26:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:49,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:49,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:49,826 INFO L87 Difference]: Start difference. First operand 6218 states and 16977 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:50,896 INFO L93 Difference]: Finished difference Result 12529 states and 33252 transitions. [2022-01-18 09:26:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:50,896 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:50,914 INFO L225 Difference]: With dead ends: 12529 [2022-01-18 09:26:50,915 INFO L226 Difference]: Without dead ends: 12529 [2022-01-18 09:26:50,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:50,915 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1281 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:50,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1281 Valid, 2729 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:50,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12529 states. [2022-01-18 09:26:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12529 to 6154. [2022-01-18 09:26:51,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:26:51,062 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:26:51,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:51,062 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:26:51,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:26:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:51,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:51,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:51,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 09:26:51,069 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:51,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2033224424, now seen corresponding path program 214 times [2022-01-18 09:26:51,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:51,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152285100] [2022-01-18 09:26:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:51,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:51,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:51,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152285100] [2022-01-18 09:26:51,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152285100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:51,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:51,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:51,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261433388] [2022-01-18 09:26:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:51,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:51,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:51,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:51,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:51,369 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:52,487 INFO L93 Difference]: Finished difference Result 11826 states and 31514 transitions. [2022-01-18 09:26:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:52,487 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:52,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:52,503 INFO L225 Difference]: With dead ends: 11826 [2022-01-18 09:26:52,503 INFO L226 Difference]: Without dead ends: 11826 [2022-01-18 09:26:52,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:52,504 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1063 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:52,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 3058 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:52,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11826 states. [2022-01-18 09:26:52,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11826 to 6202. [2022-01-18 09:26:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6200 states have (on average 2.7306451612903224) internal successors, (16930), 6201 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:52,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 16930 transitions. [2022-01-18 09:26:52,611 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 16930 transitions. Word has length 130 [2022-01-18 09:26:52,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:52,611 INFO L470 AbstractCegarLoop]: Abstraction has 6202 states and 16930 transitions. [2022-01-18 09:26:52,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:52,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 16930 transitions. [2022-01-18 09:26:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:52,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:52,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:52,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 09:26:52,619 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:52,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:52,619 INFO L85 PathProgramCache]: Analyzing trace with hash -563103698, now seen corresponding path program 215 times [2022-01-18 09:26:52,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:52,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757154902] [2022-01-18 09:26:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:52,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:52,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:52,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757154902] [2022-01-18 09:26:52,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757154902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:52,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:52,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:52,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421697158] [2022-01-18 09:26:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:52,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:52,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:52,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:52,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:52,919 INFO L87 Difference]: Start difference. First operand 6202 states and 16930 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:54,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:54,002 INFO L93 Difference]: Finished difference Result 11730 states and 31232 transitions. [2022-01-18 09:26:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:54,002 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:54,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:54,017 INFO L225 Difference]: With dead ends: 11730 [2022-01-18 09:26:54,017 INFO L226 Difference]: Without dead ends: 11730 [2022-01-18 09:26:54,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:54,018 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1010 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:54,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2802 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11730 states. [2022-01-18 09:26:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11730 to 6186. [2022-01-18 09:26:54,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-18 09:26:54,115 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-18 09:26:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:54,115 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-18 09:26:54,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-18 09:26:54,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:54,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:54,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:54,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 09:26:54,122 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:54,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:54,122 INFO L85 PathProgramCache]: Analyzing trace with hash 684459434, now seen corresponding path program 216 times [2022-01-18 09:26:54,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:54,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310693537] [2022-01-18 09:26:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:54,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:54,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:54,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310693537] [2022-01-18 09:26:54,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310693537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:54,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:54,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:54,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168820191] [2022-01-18 09:26:54,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:54,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:54,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:54,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:54,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:54,459 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:56,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:56,096 INFO L93 Difference]: Finished difference Result 12018 states and 32078 transitions. [2022-01-18 09:26:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:26:56,097 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:56,109 INFO L225 Difference]: With dead ends: 12018 [2022-01-18 09:26:56,109 INFO L226 Difference]: Without dead ends: 12018 [2022-01-18 09:26:56,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=382, Invalid=950, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:26:56,109 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1113 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:56,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 2716 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:56,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12018 states. [2022-01-18 09:26:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12018 to 6154. [2022-01-18 09:26:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:26:56,194 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:26:56,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:56,194 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:26:56,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:56,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:26:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:56,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:56,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:56,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 09:26:56,201 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:56,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:56,201 INFO L85 PathProgramCache]: Analyzing trace with hash -490457686, now seen corresponding path program 217 times [2022-01-18 09:26:56,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:56,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939367779] [2022-01-18 09:26:56,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:56,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:56,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:56,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939367779] [2022-01-18 09:26:56,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939367779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:56,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:56,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:26:56,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851416398] [2022-01-18 09:26:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:56,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:26:56,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:26:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:26:56,505 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:57,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:57,587 INFO L93 Difference]: Finished difference Result 8905 states and 23876 transitions. [2022-01-18 09:26:57,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:26:57,587 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:57,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:57,598 INFO L225 Difference]: With dead ends: 8905 [2022-01-18 09:26:57,598 INFO L226 Difference]: Without dead ends: 8905 [2022-01-18 09:26:57,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:26:57,599 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 930 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:57,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 3026 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8905 states. [2022-01-18 09:26:57,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8905 to 6026. [2022-01-18 09:26:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-18 09:26:57,686 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-18 09:26:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:57,686 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-18 09:26:57,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:57,687 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-18 09:26:57,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:57,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:57,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:57,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 09:26:57,693 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:57,694 INFO L85 PathProgramCache]: Analyzing trace with hash -698470550, now seen corresponding path program 218 times [2022-01-18 09:26:57,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:57,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478561622] [2022-01-18 09:26:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:57,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:58,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:58,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478561622] [2022-01-18 09:26:58,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478561622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:58,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:58,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:26:58,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501556028] [2022-01-18 09:26:58,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:58,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:26:58,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:58,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:26:58,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:26:58,018 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:59,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:59,594 INFO L93 Difference]: Finished difference Result 16151 states and 42955 transitions. [2022-01-18 09:26:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:26:59,594 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:26:59,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:59,617 INFO L225 Difference]: With dead ends: 16151 [2022-01-18 09:26:59,618 INFO L226 Difference]: Without dead ends: 16151 [2022-01-18 09:26:59,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:26:59,618 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1381 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:59,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 2773 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:26:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16151 states. [2022-01-18 09:26:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16151 to 6170. [2022-01-18 09:26:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:26:59,738 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:26:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:59,738 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:26:59,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:59,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:26:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:26:59,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:59,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:59,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 09:26:59,745 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1000168624, now seen corresponding path program 219 times [2022-01-18 09:26:59,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:59,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354135531] [2022-01-18 09:26:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:59,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:00,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:00,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354135531] [2022-01-18 09:27:00,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354135531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:00,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:00,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:27:00,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321012236] [2022-01-18 09:27:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:00,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:27:00,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:00,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:27:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:27:00,123 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:01,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:01,570 INFO L93 Difference]: Finished difference Result 16055 states and 42673 transitions. [2022-01-18 09:27:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:01,571 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:01,593 INFO L225 Difference]: With dead ends: 16055 [2022-01-18 09:27:01,593 INFO L226 Difference]: Without dead ends: 16055 [2022-01-18 09:27:01,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:27:01,593 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1172 mSDsluCounter, 4033 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:01,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 4374 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:27:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16055 states. [2022-01-18 09:27:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16055 to 6154. [2022-01-18 09:27:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:01,720 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:01,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:01,721 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:01,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:01,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:01,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:01,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:01,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 09:27:01,728 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:01,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:01,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2047235540, now seen corresponding path program 220 times [2022-01-18 09:27:01,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:01,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987278804] [2022-01-18 09:27:01,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:01,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:02,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:02,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987278804] [2022-01-18 09:27:02,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987278804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:02,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:02,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:02,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77569875] [2022-01-18 09:27:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:02,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:02,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:02,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:02,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:02,062 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:03,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:03,509 INFO L93 Difference]: Finished difference Result 13678 states and 36409 transitions. [2022-01-18 09:27:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:27:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:03,527 INFO L225 Difference]: With dead ends: 13678 [2022-01-18 09:27:03,527 INFO L226 Difference]: Without dead ends: 13678 [2022-01-18 09:27:03,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:27:03,528 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1251 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:03,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 2787 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13678 states. [2022-01-18 09:27:03,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13678 to 6122. [2022-01-18 09:27:03,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:27:03,637 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:27:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:03,637 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:27:03,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:27:03,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:03,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:03,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:03,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 09:27:03,644 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:03,645 INFO L85 PathProgramCache]: Analyzing trace with hash 938351376, now seen corresponding path program 221 times [2022-01-18 09:27:03,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:03,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165682358] [2022-01-18 09:27:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:03,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:03,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:03,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165682358] [2022-01-18 09:27:03,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165682358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:03,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:03,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:03,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711021004] [2022-01-18 09:27:03,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:03,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:03,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:03,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:03,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:03,951 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:05,070 INFO L93 Difference]: Finished difference Result 16334 states and 43500 transitions. [2022-01-18 09:27:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:05,071 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:05,094 INFO L225 Difference]: With dead ends: 16334 [2022-01-18 09:27:05,094 INFO L226 Difference]: Without dead ends: 16334 [2022-01-18 09:27:05,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:05,094 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1252 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:05,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1252 Valid, 2866 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:05,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16334 states. [2022-01-18 09:27:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16334 to 6154. [2022-01-18 09:27:05,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:05,222 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:05,222 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:05,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:05,222 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:05,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:05,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:05,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:05,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 09:27:05,229 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash -685598132, now seen corresponding path program 222 times [2022-01-18 09:27:05,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:05,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716366765] [2022-01-18 09:27:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:05,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:05,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:05,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716366765] [2022-01-18 09:27:05,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716366765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:05,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:05,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:05,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791407061] [2022-01-18 09:27:05,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:05,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:05,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:05,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:05,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:05,573 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:07,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:07,293 INFO L93 Difference]: Finished difference Result 17142 states and 45363 transitions. [2022-01-18 09:27:07,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:27:07,293 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:07,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:07,319 INFO L225 Difference]: With dead ends: 17142 [2022-01-18 09:27:07,319 INFO L226 Difference]: Without dead ends: 17142 [2022-01-18 09:27:07,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:27:07,320 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1340 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:07,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 3133 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17142 states. [2022-01-18 09:27:07,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17142 to 6138. [2022-01-18 09:27:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:07,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:27:07,446 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:27:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:07,446 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:27:07,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:27:07,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:07,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:07,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:07,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 09:27:07,453 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:07,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:07,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2102685912, now seen corresponding path program 223 times [2022-01-18 09:27:07,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:07,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622130510] [2022-01-18 09:27:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:07,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:07,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:07,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622130510] [2022-01-18 09:27:07,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622130510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:07,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:07,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:07,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103735603] [2022-01-18 09:27:07,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:07,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:07,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:07,774 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:09,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:09,522 INFO L93 Difference]: Finished difference Result 18684 states and 49146 transitions. [2022-01-18 09:27:09,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:27:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:09,549 INFO L225 Difference]: With dead ends: 18684 [2022-01-18 09:27:09,549 INFO L226 Difference]: Without dead ends: 18684 [2022-01-18 09:27:09,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:27:09,550 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 1338 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:09,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 2860 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:09,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2022-01-18 09:27:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 6154. [2022-01-18 09:27:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:09,695 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:09,695 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:09,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:09,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:09,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:09,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 09:27:09,702 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:09,703 INFO L85 PathProgramCache]: Analyzing trace with hash -404046738, now seen corresponding path program 224 times [2022-01-18 09:27:09,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:09,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98062280] [2022-01-18 09:27:09,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:09,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:10,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:10,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:10,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98062280] [2022-01-18 09:27:10,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98062280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:10,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:10,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:10,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176232261] [2022-01-18 09:27:10,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:10,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:10,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:10,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:10,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:10,027 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:11,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:11,652 INFO L93 Difference]: Finished difference Result 15637 states and 41214 transitions. [2022-01-18 09:27:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:27:11,652 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:11,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:11,673 INFO L225 Difference]: With dead ends: 15637 [2022-01-18 09:27:11,673 INFO L226 Difference]: Without dead ends: 15637 [2022-01-18 09:27:11,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:27:11,674 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1177 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:11,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 2893 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15637 states. [2022-01-18 09:27:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15637 to 6090. [2022-01-18 09:27:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:27:11,801 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:27:11,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:11,801 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:27:11,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:27:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:11,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:11,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:11,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 09:27:11,808 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1154733046, now seen corresponding path program 225 times [2022-01-18 09:27:11,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:11,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191518086] [2022-01-18 09:27:11,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:11,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:12,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:12,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:12,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191518086] [2022-01-18 09:27:12,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191518086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:12,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:12,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:12,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116767306] [2022-01-18 09:27:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:12,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:12,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:12,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:12,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:12,123 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:13,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:13,220 INFO L93 Difference]: Finished difference Result 11987 states and 32145 transitions. [2022-01-18 09:27:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:13,220 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:13,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:13,236 INFO L225 Difference]: With dead ends: 11987 [2022-01-18 09:27:13,236 INFO L226 Difference]: Without dead ends: 11987 [2022-01-18 09:27:13,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:13,236 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1138 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:13,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 2675 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11987 states. [2022-01-18 09:27:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11987 to 6154. [2022-01-18 09:27:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:13,334 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:13,334 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:13,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:13,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:13,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:13,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:13,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:13,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 09:27:13,341 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash 705103034, now seen corresponding path program 226 times [2022-01-18 09:27:13,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:13,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287698548] [2022-01-18 09:27:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:13,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:13,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:13,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:13,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287698548] [2022-01-18 09:27:13,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287698548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:13,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:13,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:13,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937201070] [2022-01-18 09:27:13,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:13,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:13,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:13,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:13,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:13,674 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:15,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:15,222 INFO L93 Difference]: Finished difference Result 14689 states and 39263 transitions. [2022-01-18 09:27:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:27:15,222 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:15,244 INFO L225 Difference]: With dead ends: 14689 [2022-01-18 09:27:15,244 INFO L226 Difference]: Without dead ends: 14689 [2022-01-18 09:27:15,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:27:15,245 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1263 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:15,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 3044 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:15,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14689 states. [2022-01-18 09:27:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14689 to 6170. [2022-01-18 09:27:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:27:15,402 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:27:15,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:15,402 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:27:15,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:15,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:27:15,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:15,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:15,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:15,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 09:27:15,410 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:15,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:15,410 INFO L85 PathProgramCache]: Analyzing trace with hash -918846474, now seen corresponding path program 227 times [2022-01-18 09:27:15,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:15,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275301051] [2022-01-18 09:27:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:15,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:15,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:15,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275301051] [2022-01-18 09:27:15,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275301051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:15,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:15,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:15,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509823113] [2022-01-18 09:27:15,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:15,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:15,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:15,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:15,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:15,715 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:16,859 INFO L93 Difference]: Finished difference Result 12864 states and 34190 transitions. [2022-01-18 09:27:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:16,859 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:16,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:16,877 INFO L225 Difference]: With dead ends: 12864 [2022-01-18 09:27:16,877 INFO L226 Difference]: Without dead ends: 12864 [2022-01-18 09:27:16,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:16,878 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1221 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:16,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 3044 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:16,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12864 states. [2022-01-18 09:27:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12864 to 6122. [2022-01-18 09:27:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:16,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:27:16,978 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:27:16,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:16,978 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:27:16,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:16,979 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:27:16,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:16,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:16,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:16,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 09:27:16,985 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:16,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:16,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1635758528, now seen corresponding path program 228 times [2022-01-18 09:27:16,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:16,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139926932] [2022-01-18 09:27:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:16,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:17,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:17,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139926932] [2022-01-18 09:27:17,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139926932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:17,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:17,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:17,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227312463] [2022-01-18 09:27:17,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:17,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:17,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:17,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:17,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:17,311 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:18,887 INFO L93 Difference]: Finished difference Result 14141 states and 37394 transitions. [2022-01-18 09:27:18,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:18,888 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:18,908 INFO L225 Difference]: With dead ends: 14141 [2022-01-18 09:27:18,909 INFO L226 Difference]: Without dead ends: 14141 [2022-01-18 09:27:18,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:27:18,909 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1243 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:18,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 2869 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14141 states. [2022-01-18 09:27:19,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14141 to 6154. [2022-01-18 09:27:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:19,031 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:19,032 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:19,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:19,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:19,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:19,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:19,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 09:27:19,039 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash 11809020, now seen corresponding path program 229 times [2022-01-18 09:27:19,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:19,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615985365] [2022-01-18 09:27:19,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:19,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:19,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:19,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615985365] [2022-01-18 09:27:19,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615985365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:19,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:19,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:19,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403101052] [2022-01-18 09:27:19,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:19,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:19,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:19,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:19,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:19,366 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:21,116 INFO L93 Difference]: Finished difference Result 14949 states and 39257 transitions. [2022-01-18 09:27:21,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:27:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:21,137 INFO L225 Difference]: With dead ends: 14949 [2022-01-18 09:27:21,137 INFO L226 Difference]: Without dead ends: 14949 [2022-01-18 09:27:21,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:27:21,138 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 1211 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:21,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 3197 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14949 states. [2022-01-18 09:27:21,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14949 to 6138. [2022-01-18 09:27:21,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:21,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:27:21,260 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:27:21,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:21,260 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:27:21,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:27:21,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:21,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:21,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:21,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 09:27:21,267 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:21,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:21,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1405278760, now seen corresponding path program 230 times [2022-01-18 09:27:21,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:21,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028343162] [2022-01-18 09:27:21,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:21,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:21,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028343162] [2022-01-18 09:27:21,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028343162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:21,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:21,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:21,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473803759] [2022-01-18 09:27:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:21,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:21,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:21,568 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:22,711 INFO L93 Difference]: Finished difference Result 14294 states and 37644 transitions. [2022-01-18 09:27:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:22,733 INFO L225 Difference]: With dead ends: 14294 [2022-01-18 09:27:22,734 INFO L226 Difference]: Without dead ends: 14294 [2022-01-18 09:27:22,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:22,734 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1132 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:22,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 3147 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14294 states. [2022-01-18 09:27:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14294 to 6154. [2022-01-18 09:27:22,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:22,854 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:22,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:22,854 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:22,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:22,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:22,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:22,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:22,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 09:27:22,862 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:22,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:22,862 INFO L85 PathProgramCache]: Analyzing trace with hash 293360414, now seen corresponding path program 231 times [2022-01-18 09:27:22,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:22,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336067211] [2022-01-18 09:27:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:22,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:23,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:23,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336067211] [2022-01-18 09:27:23,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336067211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:23,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:23,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:23,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609619599] [2022-01-18 09:27:23,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:23,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:23,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:23,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:23,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:23,159 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:24,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:24,231 INFO L93 Difference]: Finished difference Result 11247 states and 29712 transitions. [2022-01-18 09:27:24,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:24,231 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:24,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:24,246 INFO L225 Difference]: With dead ends: 11247 [2022-01-18 09:27:24,246 INFO L226 Difference]: Without dead ends: 11247 [2022-01-18 09:27:24,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:24,247 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1152 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:24,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 2808 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-01-18 09:27:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 5994. [2022-01-18 09:27:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.723464619492657) internal successors, (16319), 5993 states have internal predecessors, (16319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16319 transitions. [2022-01-18 09:27:24,342 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16319 transitions. Word has length 130 [2022-01-18 09:27:24,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:24,342 INFO L470 AbstractCegarLoop]: Abstraction has 5994 states and 16319 transitions. [2022-01-18 09:27:24,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16319 transitions. [2022-01-18 09:27:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:24,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:24,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:24,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 09:27:24,349 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 855661900, now seen corresponding path program 232 times [2022-01-18 09:27:24,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:24,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898849028] [2022-01-18 09:27:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:24,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:24,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:24,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898849028] [2022-01-18 09:27:24,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898849028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:24,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:24,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:24,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474432411] [2022-01-18 09:27:24,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:24,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:24,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:24,650 INFO L87 Difference]: Start difference. First operand 5994 states and 16319 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:25,784 INFO L93 Difference]: Finished difference Result 16790 states and 44770 transitions. [2022-01-18 09:27:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:25,784 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:25,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:25,808 INFO L225 Difference]: With dead ends: 16790 [2022-01-18 09:27:25,808 INFO L226 Difference]: Without dead ends: 16790 [2022-01-18 09:27:25,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:25,808 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1405 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 2780 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:25,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1405 Valid, 2780 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16790 states. [2022-01-18 09:27:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16790 to 6170. [2022-01-18 09:27:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:27:25,935 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:27:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:25,935 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:27:25,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:25,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:27:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:25,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:25,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:25,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 09:27:25,942 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:25,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1740666222, now seen corresponding path program 233 times [2022-01-18 09:27:25,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:25,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026194341] [2022-01-18 09:27:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:25,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:26,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:26,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026194341] [2022-01-18 09:27:26,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026194341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:26,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:26,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:26,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232590852] [2022-01-18 09:27:26,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:26,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:26,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:26,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:26,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:26,240 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:27,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:27,346 INFO L93 Difference]: Finished difference Result 16694 states and 44488 transitions. [2022-01-18 09:27:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:27,346 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:27,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:27,370 INFO L225 Difference]: With dead ends: 16694 [2022-01-18 09:27:27,370 INFO L226 Difference]: Without dead ends: 16694 [2022-01-18 09:27:27,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:27,370 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1350 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:27,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1350 Valid, 2804 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16694 states. [2022-01-18 09:27:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16694 to 6154. [2022-01-18 09:27:27,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:27,503 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:27,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:27,503 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:27,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:27,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:27,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:27,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 09:27:27,510 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:27,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:27,511 INFO L85 PathProgramCache]: Analyzing trace with hash -493103090, now seen corresponding path program 234 times [2022-01-18 09:27:27,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:27,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548551084] [2022-01-18 09:27:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:27,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:27,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:27,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548551084] [2022-01-18 09:27:27,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548551084] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:27,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:27,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:27,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480438973] [2022-01-18 09:27:27,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:27,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:27,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:27,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:27,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:27,813 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:28,952 INFO L93 Difference]: Finished difference Result 14317 states and 38224 transitions. [2022-01-18 09:27:28,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:28,953 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:28,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:28,974 INFO L225 Difference]: With dead ends: 14317 [2022-01-18 09:27:28,974 INFO L226 Difference]: Without dead ends: 14317 [2022-01-18 09:27:28,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:28,975 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1214 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:28,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 3114 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:28,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14317 states. [2022-01-18 09:27:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14317 to 6122. [2022-01-18 09:27:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:27:29,093 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:27:29,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:29,093 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:27:29,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:27:29,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:29,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:29,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:29,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 09:27:29,100 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1802483470, now seen corresponding path program 235 times [2022-01-18 09:27:29,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:29,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835975526] [2022-01-18 09:27:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:29,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:29,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:29,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:29,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835975526] [2022-01-18 09:27:29,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835975526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:29,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:29,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:27:29,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159193961] [2022-01-18 09:27:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:29,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:27:29,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:27:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:27:29,502 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:30,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:30,946 INFO L93 Difference]: Finished difference Result 16973 states and 45315 transitions. [2022-01-18 09:27:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:30,970 INFO L225 Difference]: With dead ends: 16973 [2022-01-18 09:27:30,970 INFO L226 Difference]: Without dead ends: 16973 [2022-01-18 09:27:30,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:27:30,971 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1167 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:30,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 4621 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:27:30,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16973 states. [2022-01-18 09:27:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16973 to 6154. [2022-01-18 09:27:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:31,097 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:31,098 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:31,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:31,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:31,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:31,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:31,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 09:27:31,105 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:31,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:31,105 INFO L85 PathProgramCache]: Analyzing trace with hash 868534318, now seen corresponding path program 236 times [2022-01-18 09:27:31,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:31,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076477324] [2022-01-18 09:27:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:31,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:31,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:31,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076477324] [2022-01-18 09:27:31,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076477324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:31,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:31,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:27:31,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059896932] [2022-01-18 09:27:31,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:31,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:27:31,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:31,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:27:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:27:31,496 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:33,001 INFO L93 Difference]: Finished difference Result 17781 states and 47178 transitions. [2022-01-18 09:27:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:33,001 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:33,025 INFO L225 Difference]: With dead ends: 17781 [2022-01-18 09:27:33,026 INFO L226 Difference]: Without dead ends: 17781 [2022-01-18 09:27:33,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:27:33,026 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1202 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:33,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1202 Valid, 4739 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:27:33,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2022-01-18 09:27:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 6138. [2022-01-18 09:27:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:27:33,153 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:27:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:33,153 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:27:33,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:27:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:33,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:33,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:33,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 09:27:33,159 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:33,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:33,159 INFO L85 PathProgramCache]: Analyzing trace with hash -548553462, now seen corresponding path program 237 times [2022-01-18 09:27:33,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:33,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117251223] [2022-01-18 09:27:33,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:33,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:33,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117251223] [2022-01-18 09:27:33,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117251223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:33,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:33,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:33,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796797714] [2022-01-18 09:27:33,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:33,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:33,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:33,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:33,458 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:34,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:34,644 INFO L93 Difference]: Finished difference Result 19323 states and 50961 transitions. [2022-01-18 09:27:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:34,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:34,671 INFO L225 Difference]: With dead ends: 19323 [2022-01-18 09:27:34,671 INFO L226 Difference]: Without dead ends: 19323 [2022-01-18 09:27:34,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:34,672 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 1187 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:34,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 3313 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19323 states. [2022-01-18 09:27:34,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19323 to 6154. [2022-01-18 09:27:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:34,809 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:34,809 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:34,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:34,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:34,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:34,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 09:27:34,816 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1150085712, now seen corresponding path program 238 times [2022-01-18 09:27:34,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:34,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311019847] [2022-01-18 09:27:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:34,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:35,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:35,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311019847] [2022-01-18 09:27:35,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311019847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:35,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:35,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:35,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742141576] [2022-01-18 09:27:35,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:35,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:35,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:35,115 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:36,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:36,251 INFO L93 Difference]: Finished difference Result 16276 states and 43029 transitions. [2022-01-18 09:27:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:36,251 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:36,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:36,275 INFO L225 Difference]: With dead ends: 16276 [2022-01-18 09:27:36,276 INFO L226 Difference]: Without dead ends: 16276 [2022-01-18 09:27:36,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:36,276 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1109 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:36,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 3245 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16276 states. [2022-01-18 09:27:36,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16276 to 6090. [2022-01-18 09:27:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:27:36,409 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:27:36,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:36,409 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:27:36,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:36,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:27:36,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:36,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:36,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:36,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 09:27:36,416 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:36,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:36,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1586101800, now seen corresponding path program 239 times [2022-01-18 09:27:36,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:36,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293575039] [2022-01-18 09:27:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:36,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:36,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:36,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293575039] [2022-01-18 09:27:36,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293575039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:36,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:36,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:36,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91327918] [2022-01-18 09:27:36,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:36,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:36,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:36,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:36,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:36,762 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:38,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:38,338 INFO L93 Difference]: Finished difference Result 17559 states and 46995 transitions. [2022-01-18 09:27:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:38,338 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:38,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:38,362 INFO L225 Difference]: With dead ends: 17559 [2022-01-18 09:27:38,362 INFO L226 Difference]: Without dead ends: 17559 [2022-01-18 09:27:38,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:27:38,363 INFO L933 BasicCegarLoop]: 415 mSDtfsCounter, 1144 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:38,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 3166 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17559 states. [2022-01-18 09:27:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17559 to 6154. [2022-01-18 09:27:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:38,491 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:38,491 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:38,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:38,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:38,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:38,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 09:27:38,498 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:38,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2035731812, now seen corresponding path program 240 times [2022-01-18 09:27:38,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:38,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509057124] [2022-01-18 09:27:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:38,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:38,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:38,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509057124] [2022-01-18 09:27:38,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509057124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:38,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:38,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:27:38,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989436620] [2022-01-18 09:27:38,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:38,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:27:38,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:38,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:27:38,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:27:38,931 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:40,417 INFO L93 Difference]: Finished difference Result 20261 states and 54113 transitions. [2022-01-18 09:27:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:40,417 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:40,447 INFO L225 Difference]: With dead ends: 20261 [2022-01-18 09:27:40,447 INFO L226 Difference]: Without dead ends: 20261 [2022-01-18 09:27:40,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:27:40,448 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 1230 mSDsluCounter, 4168 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:40,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 4545 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:27:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2022-01-18 09:27:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 6170. [2022-01-18 09:27:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:27:40,597 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:27:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:40,597 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:27:40,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:27:40,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:40,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:40,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:40,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 09:27:40,604 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash 635285976, now seen corresponding path program 241 times [2022-01-18 09:27:40,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:40,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390538367] [2022-01-18 09:27:40,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:40,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:40,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:40,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390538367] [2022-01-18 09:27:40,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390538367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:40,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:40,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:40,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419330284] [2022-01-18 09:27:40,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:40,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:40,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:40,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:40,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:40,933 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:42,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:42,634 INFO L93 Difference]: Finished difference Result 18436 states and 49040 transitions. [2022-01-18 09:27:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:27:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:42,662 INFO L225 Difference]: With dead ends: 18436 [2022-01-18 09:27:42,662 INFO L226 Difference]: Without dead ends: 18436 [2022-01-18 09:27:42,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:27:42,663 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1211 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:42,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 3199 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:42,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18436 states. [2022-01-18 09:27:42,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18436 to 6122. [2022-01-18 09:27:42,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:27:42,812 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:27:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:42,812 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:27:42,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:27:42,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:42,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:42,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:42,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 09:27:42,819 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:42,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1105076318, now seen corresponding path program 242 times [2022-01-18 09:27:42,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:42,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944481481] [2022-01-18 09:27:42,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:42,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:43,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:43,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944481481] [2022-01-18 09:27:43,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944481481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:43,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:43,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:43,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319187863] [2022-01-18 09:27:43,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:43,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:43,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:43,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:43,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:43,152 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:44,937 INFO L93 Difference]: Finished difference Result 19713 states and 52244 transitions. [2022-01-18 09:27:44,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:27:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:44,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:44,965 INFO L225 Difference]: With dead ends: 19713 [2022-01-18 09:27:44,965 INFO L226 Difference]: Without dead ends: 19713 [2022-01-18 09:27:44,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:27:44,965 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 1280 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:44,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 3355 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:44,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19713 states. [2022-01-18 09:27:45,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19713 to 6154. [2022-01-18 09:27:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:45,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:45,111 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:45,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:45,111 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:45,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:45,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:45,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:45,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:45,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 09:27:45,119 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:45,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1565941470, now seen corresponding path program 243 times [2022-01-18 09:27:45,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715782311] [2022-01-18 09:27:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:45,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:45,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:45,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715782311] [2022-01-18 09:27:45,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715782311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:45,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:45,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:45,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208317568] [2022-01-18 09:27:45,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:45,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:45,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:45,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:45,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:45,427 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:46,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:46,575 INFO L93 Difference]: Finished difference Result 20521 states and 54107 transitions. [2022-01-18 09:27:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:46,575 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:46,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:46,606 INFO L225 Difference]: With dead ends: 20521 [2022-01-18 09:27:46,606 INFO L226 Difference]: Without dead ends: 20521 [2022-01-18 09:27:46,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:46,607 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 1194 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 3008 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:46,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 3008 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20521 states. [2022-01-18 09:27:46,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20521 to 6138. [2022-01-18 09:27:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:27:46,764 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:27:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:46,765 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:27:46,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:27:46,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:46,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:46,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:46,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 09:27:46,772 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:46,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash 148853690, now seen corresponding path program 244 times [2022-01-18 09:27:46,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:46,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604884593] [2022-01-18 09:27:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:46,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:47,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:47,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604884593] [2022-01-18 09:27:47,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604884593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:47,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:47,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:47,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968122641] [2022-01-18 09:27:47,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:47,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:47,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:47,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:47,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:47,077 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:48,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:48,263 INFO L93 Difference]: Finished difference Result 19866 states and 52494 transitions. [2022-01-18 09:27:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:48,263 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:48,291 INFO L225 Difference]: With dead ends: 19866 [2022-01-18 09:27:48,291 INFO L226 Difference]: Without dead ends: 19866 [2022-01-18 09:27:48,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:48,291 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 1267 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 3336 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:48,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 3336 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19866 states. [2022-01-18 09:27:48,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19866 to 6154. [2022-01-18 09:27:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:27:48,459 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:27:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:48,459 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:27:48,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:48,459 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:27:48,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:48,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:48,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:48,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 09:27:48,466 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:48,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1847492864, now seen corresponding path program 245 times [2022-01-18 09:27:48,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:48,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718441164] [2022-01-18 09:27:48,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:48,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:48,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:48,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718441164] [2022-01-18 09:27:48,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718441164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:48,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:48,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:48,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413940937] [2022-01-18 09:27:48,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:48,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:48,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:48,763 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:49,861 INFO L93 Difference]: Finished difference Result 16819 states and 44562 transitions. [2022-01-18 09:27:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:49,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:49,885 INFO L225 Difference]: With dead ends: 16819 [2022-01-18 09:27:49,885 INFO L226 Difference]: Without dead ends: 16819 [2022-01-18 09:27:49,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:49,885 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 1185 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:49,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 2973 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16819 states. [2022-01-18 09:27:49,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16819 to 6026. [2022-01-18 09:27:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-18 09:27:50,006 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-18 09:27:50,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:50,006 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-18 09:27:50,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-18 09:27:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:50,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:50,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:50,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 09:27:50,013 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:50,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 735353014, now seen corresponding path program 246 times [2022-01-18 09:27:50,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:50,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725719884] [2022-01-18 09:27:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:50,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:50,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:50,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:50,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725719884] [2022-01-18 09:27:50,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725719884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:50,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:50,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:27:50,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538161413] [2022-01-18 09:27:50,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:50,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:27:50,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:27:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:27:50,405 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:51,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:51,824 INFO L93 Difference]: Finished difference Result 12648 states and 34066 transitions. [2022-01-18 09:27:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:51,825 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:51,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:51,843 INFO L225 Difference]: With dead ends: 12648 [2022-01-18 09:27:51,844 INFO L226 Difference]: Without dead ends: 12648 [2022-01-18 09:27:51,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:27:51,844 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1110 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 4217 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:51,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 4217 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:27:51,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2022-01-18 09:27:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 6058. [2022-01-18 09:27:51,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-18 09:27:51,957 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-18 09:27:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:51,957 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-18 09:27:51,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-18 09:27:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:51,963 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:51,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:51,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 09:27:51,963 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:51,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:51,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1626474118, now seen corresponding path program 247 times [2022-01-18 09:27:51,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:51,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475752922] [2022-01-18 09:27:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:51,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:52,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:52,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475752922] [2022-01-18 09:27:52,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475752922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:52,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:52,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:52,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144652904] [2022-01-18 09:27:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:52,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:52,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:52,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:52,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:52,293 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:53,464 INFO L93 Difference]: Finished difference Result 15776 states and 42394 transitions. [2022-01-18 09:27:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:53,464 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:53,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:53,487 INFO L225 Difference]: With dead ends: 15776 [2022-01-18 09:27:53,487 INFO L226 Difference]: Without dead ends: 15776 [2022-01-18 09:27:53,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:53,487 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1039 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:53,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 3112 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-01-18 09:27:53,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 6090. [2022-01-18 09:27:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:27:53,608 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:27:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:53,608 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:27:53,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:27:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:53,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:53,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:53,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 09:27:53,615 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:53,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:53,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1653954938, now seen corresponding path program 248 times [2022-01-18 09:27:53,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:53,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804759349] [2022-01-18 09:27:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:53,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:53,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:53,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804759349] [2022-01-18 09:27:53,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804759349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:53,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:53,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:53,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723858059] [2022-01-18 09:27:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:53,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:53,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:53,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:53,922 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:55,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:55,044 INFO L93 Difference]: Finished difference Result 15488 states and 41548 transitions. [2022-01-18 09:27:55,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:27:55,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:55,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:55,066 INFO L225 Difference]: With dead ends: 15488 [2022-01-18 09:27:55,066 INFO L226 Difference]: Without dead ends: 15488 [2022-01-18 09:27:55,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:55,066 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1176 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:55,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 2770 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:27:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15488 states. [2022-01-18 09:27:55,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15488 to 6106. [2022-01-18 09:27:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:27:55,182 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:27:55,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:55,182 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:27:55,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:27:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:55,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:55,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:55,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 09:27:55,188 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:55,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash 30005430, now seen corresponding path program 249 times [2022-01-18 09:27:55,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:55,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417632688] [2022-01-18 09:27:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:55,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:55,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417632688] [2022-01-18 09:27:55,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417632688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:55,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:55,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:55,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17176260] [2022-01-18 09:27:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:55,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:55,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:55,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:55,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:55,524 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:57,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:57,051 INFO L93 Difference]: Finished difference Result 13663 states and 36475 transitions. [2022-01-18 09:27:57,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:27:57,052 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:57,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:57,072 INFO L225 Difference]: With dead ends: 13663 [2022-01-18 09:27:57,072 INFO L226 Difference]: Without dead ends: 13663 [2022-01-18 09:27:57,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:27:57,072 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1253 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:57,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 2982 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-01-18 09:27:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 6042. [2022-01-18 09:27:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:57,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-18 09:27:57,190 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-18 09:27:57,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:57,190 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-18 09:27:57,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:57,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-18 09:27:57,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:57,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:57,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:57,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 09:27:57,197 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:57,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:57,197 INFO L85 PathProgramCache]: Analyzing trace with hash -444241724, now seen corresponding path program 250 times [2022-01-18 09:27:57,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:57,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536768236] [2022-01-18 09:27:57,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:57,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:57,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:57,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536768236] [2022-01-18 09:27:57,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536768236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:57,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:57,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:27:57,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608268250] [2022-01-18 09:27:57,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:57,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:27:57,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:57,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:27:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:27:57,558 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:59,146 INFO L93 Difference]: Finished difference Result 15142 states and 40231 transitions. [2022-01-18 09:27:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:27:59,146 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:27:59,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:59,167 INFO L225 Difference]: With dead ends: 15142 [2022-01-18 09:27:59,167 INFO L226 Difference]: Without dead ends: 15142 [2022-01-18 09:27:59,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:27:59,167 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1086 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:59,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3224 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:27:59,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15142 states. [2022-01-18 09:27:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15142 to 6106. [2022-01-18 09:27:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:59,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:27:59,282 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:27:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:59,282 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:27:59,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:59,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:27:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:27:59,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:59,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:59,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 09:27:59,289 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:59,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:59,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1458779964, now seen corresponding path program 251 times [2022-01-18 09:27:59,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:59,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73793108] [2022-01-18 09:27:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:59,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:59,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:59,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73793108] [2022-01-18 09:27:59,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73793108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:59,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:59,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:27:59,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202788609] [2022-01-18 09:27:59,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:59,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:27:59,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:27:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:27:59,596 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:00,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:00,733 INFO L93 Difference]: Finished difference Result 17844 states and 47349 transitions. [2022-01-18 09:28:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:00,733 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:00,758 INFO L225 Difference]: With dead ends: 17844 [2022-01-18 09:28:00,758 INFO L226 Difference]: Without dead ends: 17844 [2022-01-18 09:28:00,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:00,758 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1112 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:00,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 2989 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17844 states. [2022-01-18 09:28:00,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17844 to 6122. [2022-01-18 09:28:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:28:00,888 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:28:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:00,888 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:28:00,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:28:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:00,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:00,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:00,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 09:28:00,895 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1212237824, now seen corresponding path program 252 times [2022-01-18 09:28:00,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:00,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562144147] [2022-01-18 09:28:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:00,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:01,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:01,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562144147] [2022-01-18 09:28:01,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562144147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:01,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:01,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:01,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240946990] [2022-01-18 09:28:01,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:01,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:01,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:01,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:01,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:01,230 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:02,941 INFO L93 Difference]: Finished difference Result 16019 states and 42276 transitions. [2022-01-18 09:28:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:02,961 INFO L225 Difference]: With dead ends: 16019 [2022-01-18 09:28:02,961 INFO L226 Difference]: Without dead ends: 16019 [2022-01-18 09:28:02,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:02,962 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1271 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:02,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1271 Valid, 2848 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:02,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16019 states. [2022-01-18 09:28:03,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16019 to 6074. [2022-01-18 09:28:03,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6072 states have (on average 2.7262845849802373) internal successors, (16554), 6073 states have internal predecessors, (16554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:03,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 16554 transitions. [2022-01-18 09:28:03,065 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 16554 transitions. Word has length 130 [2022-01-18 09:28:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:03,065 INFO L470 AbstractCegarLoop]: Abstraction has 6074 states and 16554 transitions. [2022-01-18 09:28:03,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 16554 transitions. [2022-01-18 09:28:03,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:03,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:03,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:03,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 09:28:03,072 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:03,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:03,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1654665058, now seen corresponding path program 253 times [2022-01-18 09:28:03,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:03,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91511426] [2022-01-18 09:28:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:03,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:03,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:03,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91511426] [2022-01-18 09:28:03,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91511426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:03,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:03,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:03,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528560770] [2022-01-18 09:28:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:03,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:03,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:03,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:03,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:03,385 INFO L87 Difference]: Start difference. First operand 6074 states and 16554 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:04,545 INFO L93 Difference]: Finished difference Result 14716 states and 39021 transitions. [2022-01-18 09:28:04,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:04,546 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:04,567 INFO L225 Difference]: With dead ends: 14716 [2022-01-18 09:28:04,567 INFO L226 Difference]: Without dead ends: 14716 [2022-01-18 09:28:04,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:04,567 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1060 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:04,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 3243 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:04,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14716 states. [2022-01-18 09:28:04,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14716 to 6106. [2022-01-18 09:28:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:28:04,688 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:28:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:04,688 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:28:04,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:04,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:28:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:04,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:04,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:04,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 09:28:04,695 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:04,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:04,695 INFO L85 PathProgramCache]: Analyzing trace with hash 30715550, now seen corresponding path program 254 times [2022-01-18 09:28:04,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:04,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848107420] [2022-01-18 09:28:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:04,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:05,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:05,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:05,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848107420] [2022-01-18 09:28:05,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848107420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:05,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:05,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:05,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875500874] [2022-01-18 09:28:05,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:05,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:05,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:05,024 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:06,692 INFO L93 Difference]: Finished difference Result 15524 states and 40884 transitions. [2022-01-18 09:28:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:06,692 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:06,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:06,713 INFO L225 Difference]: With dead ends: 15524 [2022-01-18 09:28:06,713 INFO L226 Difference]: Without dead ends: 15524 [2022-01-18 09:28:06,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:06,714 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1293 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:06,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 2843 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15524 states. [2022-01-18 09:28:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15524 to 6090. [2022-01-18 09:28:06,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:06,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:28:06,828 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:28:06,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:06,828 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:28:06,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:06,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:28:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:06,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:06,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:06,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 09:28:06,835 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1386372230, now seen corresponding path program 255 times [2022-01-18 09:28:06,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:06,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942284288] [2022-01-18 09:28:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:06,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:07,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:07,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942284288] [2022-01-18 09:28:07,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942284288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:07,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:07,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:07,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35607210] [2022-01-18 09:28:07,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:07,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:07,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:07,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:07,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:07,249 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:08,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:08,679 INFO L93 Difference]: Finished difference Result 14869 states and 39271 transitions. [2022-01-18 09:28:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:08,680 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:08,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:08,700 INFO L225 Difference]: With dead ends: 14869 [2022-01-18 09:28:08,700 INFO L226 Difference]: Without dead ends: 14869 [2022-01-18 09:28:08,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:08,701 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 1198 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 4358 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:08,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 4358 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14869 states. [2022-01-18 09:28:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14869 to 6106. [2022-01-18 09:28:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:28:08,812 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:28:08,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:08,812 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:28:08,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:28:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:08,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:08,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:08,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 09:28:08,818 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:08,819 INFO L85 PathProgramCache]: Analyzing trace with hash 312266944, now seen corresponding path program 256 times [2022-01-18 09:28:08,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:08,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980771402] [2022-01-18 09:28:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:08,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:09,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:09,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980771402] [2022-01-18 09:28:09,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980771402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:09,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:09,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:09,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370805890] [2022-01-18 09:28:09,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:09,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:09,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:09,119 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:10,239 INFO L93 Difference]: Finished difference Result 11822 states and 31339 transitions. [2022-01-18 09:28:10,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:10,239 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:10,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:10,254 INFO L225 Difference]: With dead ends: 11822 [2022-01-18 09:28:10,255 INFO L226 Difference]: Without dead ends: 11822 [2022-01-18 09:28:10,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:10,255 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1027 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 3168 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:10,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 3168 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11822 states. [2022-01-18 09:28:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11822 to 5978. [2022-01-18 09:28:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5976 states have (on average 2.7228915662650603) internal successors, (16272), 5977 states have internal predecessors, (16272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 16272 transitions. [2022-01-18 09:28:10,354 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 16272 transitions. Word has length 130 [2022-01-18 09:28:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:10,355 INFO L470 AbstractCegarLoop]: Abstraction has 5978 states and 16272 transitions. [2022-01-18 09:28:10,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 16272 transitions. [2022-01-18 09:28:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:10,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:10,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:10,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 09:28:10,361 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:10,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1269509862, now seen corresponding path program 257 times [2022-01-18 09:28:10,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:10,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729062204] [2022-01-18 09:28:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:10,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:10,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:10,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729062204] [2022-01-18 09:28:10,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729062204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:10,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:10,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:10,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804378440] [2022-01-18 09:28:10,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:10,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:10,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:10,686 INFO L87 Difference]: Start difference. First operand 5978 states and 16272 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:12,273 INFO L93 Difference]: Finished difference Result 17216 states and 45980 transitions. [2022-01-18 09:28:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:12,298 INFO L225 Difference]: With dead ends: 17216 [2022-01-18 09:28:12,298 INFO L226 Difference]: Without dead ends: 17216 [2022-01-18 09:28:12,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:28:12,299 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1273 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:12,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1273 Valid, 3136 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:12,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17216 states. [2022-01-18 09:28:12,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17216 to 6186. [2022-01-18 09:28:12,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:12,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-18 09:28:12,449 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-18 09:28:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:12,449 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-18 09:28:12,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-18 09:28:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:12,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:12,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:12,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 09:28:12,456 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:12,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:12,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1326818260, now seen corresponding path program 258 times [2022-01-18 09:28:12,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:12,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102603992] [2022-01-18 09:28:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:12,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:12,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:12,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102603992] [2022-01-18 09:28:12,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102603992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:12,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:12,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:12,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463586582] [2022-01-18 09:28:12,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:12,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:12,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:12,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:12,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:12,834 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:14,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:14,238 INFO L93 Difference]: Finished difference Result 17120 states and 45698 transitions. [2022-01-18 09:28:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:14,239 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:14,263 INFO L225 Difference]: With dead ends: 17120 [2022-01-18 09:28:14,263 INFO L226 Difference]: Without dead ends: 17120 [2022-01-18 09:28:14,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:14,264 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1187 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:14,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 4370 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17120 states. [2022-01-18 09:28:14,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17120 to 6170. [2022-01-18 09:28:14,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:14,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:28:14,396 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:28:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:14,396 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:28:14,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:28:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:14,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:14,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:14,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 09:28:14,403 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:14,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash -79255128, now seen corresponding path program 259 times [2022-01-18 09:28:14,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:14,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057834924] [2022-01-18 09:28:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:14,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:14,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:14,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057834924] [2022-01-18 09:28:14,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057834924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:14,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:14,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:14,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288808980] [2022-01-18 09:28:14,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:14,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:14,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:14,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:14,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:14,736 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:16,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:16,152 INFO L93 Difference]: Finished difference Result 14743 states and 39434 transitions. [2022-01-18 09:28:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:28:16,153 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:16,174 INFO L225 Difference]: With dead ends: 14743 [2022-01-18 09:28:16,174 INFO L226 Difference]: Without dead ends: 14743 [2022-01-18 09:28:16,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:28:16,175 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1091 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:16,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 2858 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14743 states. [2022-01-18 09:28:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14743 to 6138. [2022-01-18 09:28:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:16,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:28:16,293 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:28:16,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:16,293 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:28:16,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:16,293 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:28:16,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:16,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:16,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:16,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 09:28:16,300 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1388635508, now seen corresponding path program 260 times [2022-01-18 09:28:16,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:16,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527272592] [2022-01-18 09:28:16,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:16,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:16,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:16,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527272592] [2022-01-18 09:28:16,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527272592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:16,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:16,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:16,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861273105] [2022-01-18 09:28:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:16,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:16,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:16,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:16,688 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:18,172 INFO L93 Difference]: Finished difference Result 17399 states and 46525 transitions. [2022-01-18 09:28:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:18,198 INFO L225 Difference]: With dead ends: 17399 [2022-01-18 09:28:18,198 INFO L226 Difference]: Without dead ends: 17399 [2022-01-18 09:28:18,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:18,198 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1311 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4629 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:18,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 4629 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:18,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17399 states. [2022-01-18 09:28:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17399 to 6170. [2022-01-18 09:28:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:28:18,336 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:28:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:18,336 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:28:18,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:28:18,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:18,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:18,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:18,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 09:28:18,344 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1282382280, now seen corresponding path program 261 times [2022-01-18 09:28:18,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:18,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839887983] [2022-01-18 09:28:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:18,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:18,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:18,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839887983] [2022-01-18 09:28:18,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839887983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:18,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:18,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:18,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093164149] [2022-01-18 09:28:18,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:18,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:18,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:18,670 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:20,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:20,359 INFO L93 Difference]: Finished difference Result 18207 states and 48388 transitions. [2022-01-18 09:28:20,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:20,359 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:20,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:20,385 INFO L225 Difference]: With dead ends: 18207 [2022-01-18 09:28:20,385 INFO L226 Difference]: Without dead ends: 18207 [2022-01-18 09:28:20,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:20,386 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1336 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 3232 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:20,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 3232 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:20,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18207 states. [2022-01-18 09:28:20,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18207 to 6154. [2022-01-18 09:28:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:20,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:28:20,525 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:28:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:20,525 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:28:20,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:28:20,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:20,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:20,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:20,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 09:28:20,533 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:20,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:20,533 INFO L85 PathProgramCache]: Analyzing trace with hash -134705500, now seen corresponding path program 262 times [2022-01-18 09:28:20,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:20,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681664802] [2022-01-18 09:28:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:20,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:20,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:20,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681664802] [2022-01-18 09:28:20,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681664802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:20,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:20,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:20,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44388126] [2022-01-18 09:28:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:20,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:20,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:20,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:20,916 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:22,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:22,471 INFO L93 Difference]: Finished difference Result 19749 states and 52171 transitions. [2022-01-18 09:28:22,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:22,472 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:22,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:22,498 INFO L225 Difference]: With dead ends: 19749 [2022-01-18 09:28:22,498 INFO L226 Difference]: Without dead ends: 19749 [2022-01-18 09:28:22,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:22,499 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1205 mSDsluCounter, 4617 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:22,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 5001 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:22,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19749 states. [2022-01-18 09:28:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19749 to 6170. [2022-01-18 09:28:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:28:22,641 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:28:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:22,641 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:28:22,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:28:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:22,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:22,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:22,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 09:28:22,648 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:22,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1563933674, now seen corresponding path program 263 times [2022-01-18 09:28:22,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:22,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099805614] [2022-01-18 09:28:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:22,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:23,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:23,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099805614] [2022-01-18 09:28:23,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099805614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:23,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:23,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:23,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485474116] [2022-01-18 09:28:23,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:23,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:23,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:23,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:23,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:23,001 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:24,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:24,639 INFO L93 Difference]: Finished difference Result 16702 states and 44239 transitions. [2022-01-18 09:28:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:24,639 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:24,663 INFO L225 Difference]: With dead ends: 16702 [2022-01-18 09:28:24,664 INFO L226 Difference]: Without dead ends: 16702 [2022-01-18 09:28:24,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:24,664 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1341 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:24,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 3219 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16702 states. [2022-01-18 09:28:24,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16702 to 6106. [2022-01-18 09:28:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:24,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:28:24,797 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:28:24,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:24,798 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:28:24,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:28:24,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:24,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:24,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:24,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 09:28:24,804 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:24,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:24,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1172253838, now seen corresponding path program 264 times [2022-01-18 09:28:24,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:24,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456380963] [2022-01-18 09:28:24,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:24,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:25,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:25,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456380963] [2022-01-18 09:28:25,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456380963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:25,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:25,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:25,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858573360] [2022-01-18 09:28:25,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:25,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:25,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:25,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:25,144 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:26,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:26,679 INFO L93 Difference]: Finished difference Result 17985 states and 48205 transitions. [2022-01-18 09:28:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:26,679 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:26,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:26,705 INFO L225 Difference]: With dead ends: 17985 [2022-01-18 09:28:26,705 INFO L226 Difference]: Without dead ends: 17985 [2022-01-18 09:28:26,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:28:26,706 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1321 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:26,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 2835 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:26,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17985 states. [2022-01-18 09:28:26,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17985 to 6170. [2022-01-18 09:28:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:26,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:28:26,848 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:28:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:26,848 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:28:26,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:28:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:26,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:26,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:26,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 09:28:26,856 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:26,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1621883850, now seen corresponding path program 265 times [2022-01-18 09:28:26,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:26,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465959034] [2022-01-18 09:28:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:26,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:27,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:27,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465959034] [2022-01-18 09:28:27,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465959034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:27,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:27,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:27,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557530392] [2022-01-18 09:28:27,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:27,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:27,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:27,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:27,183 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:28,342 INFO L93 Difference]: Finished difference Result 20687 states and 55323 transitions. [2022-01-18 09:28:28,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:28,342 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:28,373 INFO L225 Difference]: With dead ends: 20687 [2022-01-18 09:28:28,373 INFO L226 Difference]: Without dead ends: 20687 [2022-01-18 09:28:28,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:28,374 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 1240 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:28,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 2991 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20687 states. [2022-01-18 09:28:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20687 to 6186. [2022-01-18 09:28:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 6184 states have (on average 2.730109961190168) internal successors, (16883), 6185 states have internal predecessors, (16883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 16883 transitions. [2022-01-18 09:28:28,542 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 16883 transitions. Word has length 130 [2022-01-18 09:28:28,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:28,543 INFO L470 AbstractCegarLoop]: Abstraction has 6186 states and 16883 transitions. [2022-01-18 09:28:28,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 16883 transitions. [2022-01-18 09:28:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:28,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:28,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:28,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 09:28:28,551 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1049133938, now seen corresponding path program 266 times [2022-01-18 09:28:28,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:28,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513199675] [2022-01-18 09:28:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:28,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:28,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:28,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513199675] [2022-01-18 09:28:28,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513199675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:28,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:28,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:28,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823629131] [2022-01-18 09:28:28,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:28,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:28,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:28,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:28,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:28,887 INFO L87 Difference]: Start difference. First operand 6186 states and 16883 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:30,567 INFO L93 Difference]: Finished difference Result 18862 states and 50250 transitions. [2022-01-18 09:28:30,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:30,567 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:30,595 INFO L225 Difference]: With dead ends: 18862 [2022-01-18 09:28:30,595 INFO L226 Difference]: Without dead ends: 18862 [2022-01-18 09:28:30,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:30,595 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1305 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:30,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 3202 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:30,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18862 states. [2022-01-18 09:28:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18862 to 6138. [2022-01-18 09:28:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:28:30,738 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:28:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:30,739 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:28:30,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:28:30,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:30,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:30,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:30,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 09:28:30,745 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:30,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:30,746 INFO L85 PathProgramCache]: Analyzing trace with hash -691228356, now seen corresponding path program 267 times [2022-01-18 09:28:30,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:30,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714228013] [2022-01-18 09:28:30,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:30,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:31,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:31,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714228013] [2022-01-18 09:28:31,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714228013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:31,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:31,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:31,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73701395] [2022-01-18 09:28:31,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:31,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:31,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:31,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:31,078 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:32,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:32,859 INFO L93 Difference]: Finished difference Result 20139 states and 53454 transitions. [2022-01-18 09:28:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:28:32,859 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:32,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:32,888 INFO L225 Difference]: With dead ends: 20139 [2022-01-18 09:28:32,888 INFO L226 Difference]: Without dead ends: 20139 [2022-01-18 09:28:32,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:28:32,888 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 1257 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:32,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 3361 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20139 states. [2022-01-18 09:28:33,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20139 to 6170. [2022-01-18 09:28:33,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:28:33,038 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:28:33,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:33,038 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:28:33,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:28:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:33,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:33,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:33,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 09:28:33,045 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:33,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1979789432, now seen corresponding path program 268 times [2022-01-18 09:28:33,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:33,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571468171] [2022-01-18 09:28:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:33,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:33,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:33,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571468171] [2022-01-18 09:28:33,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571468171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:33,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:33,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:33,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755164211] [2022-01-18 09:28:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:33,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:33,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:33,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:33,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:33,350 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:34,552 INFO L93 Difference]: Finished difference Result 20947 states and 55317 transitions. [2022-01-18 09:28:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:34,553 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:34,582 INFO L225 Difference]: With dead ends: 20947 [2022-01-18 09:28:34,583 INFO L226 Difference]: Without dead ends: 20947 [2022-01-18 09:28:34,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:34,583 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1278 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 3431 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:34,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 3431 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:34,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20947 states. [2022-01-18 09:28:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20947 to 6154. [2022-01-18 09:28:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 6152 states have (on average 2.729031209362809) internal successors, (16789), 6153 states have internal predecessors, (16789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 16789 transitions. [2022-01-18 09:28:34,738 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 16789 transitions. Word has length 130 [2022-01-18 09:28:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:34,738 INFO L470 AbstractCegarLoop]: Abstraction has 6154 states and 16789 transitions. [2022-01-18 09:28:34,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 16789 transitions. [2022-01-18 09:28:34,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:34,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:34,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:34,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 09:28:34,745 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:34,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash 562701652, now seen corresponding path program 269 times [2022-01-18 09:28:34,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:34,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759570299] [2022-01-18 09:28:34,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:34,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:35,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:35,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759570299] [2022-01-18 09:28:35,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759570299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:35,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:35,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:35,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095029355] [2022-01-18 09:28:35,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:35,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:35,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:35,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:35,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:35,045 INFO L87 Difference]: Start difference. First operand 6154 states and 16789 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:36,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:36,240 INFO L93 Difference]: Finished difference Result 20292 states and 53704 transitions. [2022-01-18 09:28:36,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:36,240 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:36,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:36,270 INFO L225 Difference]: With dead ends: 20292 [2022-01-18 09:28:36,270 INFO L226 Difference]: Without dead ends: 20292 [2022-01-18 09:28:36,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:36,271 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 1259 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:36,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 3374 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20292 states. [2022-01-18 09:28:36,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20292 to 6170. [2022-01-18 09:28:36,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6168 states have (on average 2.7295719844357977) internal successors, (16836), 6169 states have internal predecessors, (16836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16836 transitions. [2022-01-18 09:28:36,448 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16836 transitions. Word has length 130 [2022-01-18 09:28:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:36,448 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 16836 transitions. [2022-01-18 09:28:36,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16836 transitions. [2022-01-18 09:28:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:36,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:36,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:36,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 09:28:36,455 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:36,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:36,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2033626470, now seen corresponding path program 270 times [2022-01-18 09:28:36,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:36,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365578185] [2022-01-18 09:28:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:36,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:36,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:36,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365578185] [2022-01-18 09:28:36,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365578185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:36,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:36,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:36,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241202952] [2022-01-18 09:28:36,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:36,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:36,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:36,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:36,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:36,837 INFO L87 Difference]: Start difference. First operand 6170 states and 16836 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:38,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:38,296 INFO L93 Difference]: Finished difference Result 17245 states and 45772 transitions. [2022-01-18 09:28:38,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:38,297 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:38,321 INFO L225 Difference]: With dead ends: 17245 [2022-01-18 09:28:38,321 INFO L226 Difference]: Without dead ends: 17245 [2022-01-18 09:28:38,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:38,322 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 1102 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:38,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 4847 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:38,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17245 states. [2022-01-18 09:28:38,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17245 to 6042. [2022-01-18 09:28:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-18 09:28:38,453 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-18 09:28:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:38,453 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-18 09:28:38,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-18 09:28:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:38,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:38,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:38,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 09:28:38,459 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1149200976, now seen corresponding path program 271 times [2022-01-18 09:28:38,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:38,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511948281] [2022-01-18 09:28:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:38,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:38,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:38,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511948281] [2022-01-18 09:28:38,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511948281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:38,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:38,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:38,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434959495] [2022-01-18 09:28:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:38,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:38,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:38,802 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:40,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:40,317 INFO L93 Difference]: Finished difference Result 18614 states and 50032 transitions. [2022-01-18 09:28:40,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:40,318 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:40,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:40,344 INFO L225 Difference]: With dead ends: 18614 [2022-01-18 09:28:40,345 INFO L226 Difference]: Without dead ends: 18614 [2022-01-18 09:28:40,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:28:40,345 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1080 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:40,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 2905 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:40,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18614 states. [2022-01-18 09:28:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18614 to 6074. [2022-01-18 09:28:40,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6072 states have (on average 2.7262845849802373) internal successors, (16554), 6073 states have internal predecessors, (16554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 16554 transitions. [2022-01-18 09:28:40,492 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 16554 transitions. Word has length 130 [2022-01-18 09:28:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:40,492 INFO L470 AbstractCegarLoop]: Abstraction has 6074 states and 16554 transitions. [2022-01-18 09:28:40,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:40,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 16554 transitions. [2022-01-18 09:28:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:40,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:40,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:40,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 09:28:40,499 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:40,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:40,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1212626156, now seen corresponding path program 272 times [2022-01-18 09:28:40,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:40,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109461846] [2022-01-18 09:28:40,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:40,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:40,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:40,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109461846] [2022-01-18 09:28:40,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109461846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:40,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:40,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:40,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976994341] [2022-01-18 09:28:40,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:40,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:40,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:40,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:40,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:40,866 INFO L87 Difference]: Start difference. First operand 6074 states and 16554 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:42,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:42,516 INFO L93 Difference]: Finished difference Result 21742 states and 58360 transitions. [2022-01-18 09:28:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:42,516 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:42,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:42,548 INFO L225 Difference]: With dead ends: 21742 [2022-01-18 09:28:42,548 INFO L226 Difference]: Without dead ends: 21742 [2022-01-18 09:28:42,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:42,549 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1313 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:42,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 3244 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21742 states. [2022-01-18 09:28:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21742 to 6106. [2022-01-18 09:28:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:28:42,711 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:28:42,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:42,711 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:28:42,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:42,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:28:42,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:42,718 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:42,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:42,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 09:28:42,718 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:42,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2067802900, now seen corresponding path program 273 times [2022-01-18 09:28:42,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:42,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986133260] [2022-01-18 09:28:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:42,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:43,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:43,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986133260] [2022-01-18 09:28:43,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986133260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:43,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:43,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:43,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553499419] [2022-01-18 09:28:43,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:43,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:43,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:43,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:43,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:43,032 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:44,226 INFO L93 Difference]: Finished difference Result 21454 states and 57514 transitions. [2022-01-18 09:28:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:44,258 INFO L225 Difference]: With dead ends: 21454 [2022-01-18 09:28:44,258 INFO L226 Difference]: Without dead ends: 21454 [2022-01-18 09:28:44,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:44,258 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1192 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:44,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 3275 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21454 states. [2022-01-18 09:28:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21454 to 6122. [2022-01-18 09:28:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:28:44,418 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:28:44,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:44,419 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:28:44,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:28:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:44,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:44,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:44,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 09:28:44,425 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:44,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:44,426 INFO L85 PathProgramCache]: Analyzing trace with hash 443853392, now seen corresponding path program 274 times [2022-01-18 09:28:44,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:44,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433464083] [2022-01-18 09:28:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:44,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:44,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:44,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433464083] [2022-01-18 09:28:44,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433464083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:44,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:44,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:44,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088465451] [2022-01-18 09:28:44,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:44,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:44,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:44,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:44,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:44,764 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:46,466 INFO L93 Difference]: Finished difference Result 19629 states and 52441 transitions. [2022-01-18 09:28:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:28:46,466 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:46,492 INFO L225 Difference]: With dead ends: 19629 [2022-01-18 09:28:46,492 INFO L226 Difference]: Without dead ends: 19629 [2022-01-18 09:28:46,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:28:46,493 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1359 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:46,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1359 Valid, 3192 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:46,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19629 states. [2022-01-18 09:28:46,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19629 to 6058. [2022-01-18 09:28:46,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-18 09:28:46,638 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-18 09:28:46,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:46,638 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-18 09:28:46,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:46,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-18 09:28:46,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:46,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:46,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:46,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 09:28:46,645 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:46,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:46,645 INFO L85 PathProgramCache]: Analyzing trace with hash -30393762, now seen corresponding path program 275 times [2022-01-18 09:28:46,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:46,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765950833] [2022-01-18 09:28:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:46,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:46,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:46,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765950833] [2022-01-18 09:28:46,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765950833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:46,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:46,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:46,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359729103] [2022-01-18 09:28:46,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:46,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:46,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:46,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:46,986 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:48,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:48,731 INFO L93 Difference]: Finished difference Result 21108 states and 56197 transitions. [2022-01-18 09:28:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:28:48,731 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:48,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:48,761 INFO L225 Difference]: With dead ends: 21108 [2022-01-18 09:28:48,761 INFO L226 Difference]: Without dead ends: 21108 [2022-01-18 09:28:48,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:28:48,762 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 1151 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:48,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 3434 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:48,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21108 states. [2022-01-18 09:28:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21108 to 6122. [2022-01-18 09:28:48,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:48,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:28:48,917 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:28:48,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:48,918 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:28:48,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:28:48,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:48,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:48,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:48,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 09:28:48,924 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:48,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:48,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1044932002, now seen corresponding path program 276 times [2022-01-18 09:28:48,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:48,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878386371] [2022-01-18 09:28:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:49,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:49,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:49,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878386371] [2022-01-18 09:28:49,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878386371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:49,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:49,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:49,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727299513] [2022-01-18 09:28:49,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:49,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:49,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:49,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:49,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:49,315 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:50,892 INFO L93 Difference]: Finished difference Result 23810 states and 63315 transitions. [2022-01-18 09:28:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:50,927 INFO L225 Difference]: With dead ends: 23810 [2022-01-18 09:28:50,927 INFO L226 Difference]: Without dead ends: 23810 [2022-01-18 09:28:50,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:50,928 INFO L933 BasicCegarLoop]: 494 mSDtfsCounter, 1161 mSDsluCounter, 4809 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 5197 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:50,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 5197 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:50,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23810 states. [2022-01-18 09:28:51,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23810 to 6138. [2022-01-18 09:28:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 2.7284876140808345) internal successors, (16742), 6137 states have internal predecessors, (16742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:51,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 16742 transitions. [2022-01-18 09:28:51,099 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 16742 transitions. Word has length 130 [2022-01-18 09:28:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:51,099 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 16742 transitions. [2022-01-18 09:28:51,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 16742 transitions. [2022-01-18 09:28:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:51,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:51,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:51,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 09:28:51,106 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:51,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1626085786, now seen corresponding path program 277 times [2022-01-18 09:28:51,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:51,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385462744] [2022-01-18 09:28:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:51,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:51,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:51,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:51,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385462744] [2022-01-18 09:28:51,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385462744] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:51,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:51,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:51,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550186103] [2022-01-18 09:28:51,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:51,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:51,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:51,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:51,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:51,492 INFO L87 Difference]: Start difference. First operand 6138 states and 16742 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:53,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:53,017 INFO L93 Difference]: Finished difference Result 21985 states and 58242 transitions. [2022-01-18 09:28:53,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:28:53,017 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:53,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:53,050 INFO L225 Difference]: With dead ends: 21985 [2022-01-18 09:28:53,050 INFO L226 Difference]: Without dead ends: 21985 [2022-01-18 09:28:53,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:53,051 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 1180 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:53,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 4831 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:53,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21985 states. [2022-01-18 09:28:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21985 to 6090. [2022-01-18 09:28:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:28:53,218 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:28:53,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:53,218 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:28:53,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:28:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:53,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:53,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:53,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 09:28:53,225 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:53,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:53,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2068513020, now seen corresponding path program 278 times [2022-01-18 09:28:53,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:53,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007426813] [2022-01-18 09:28:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:53,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:53,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:53,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007426813] [2022-01-18 09:28:53,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007426813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:53,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:53,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:28:53,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669103638] [2022-01-18 09:28:53,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:53,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:28:53,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:28:53,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:28:53,535 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:54,689 INFO L93 Difference]: Finished difference Result 20682 states and 54987 transitions. [2022-01-18 09:28:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:28:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:54,719 INFO L225 Difference]: With dead ends: 20682 [2022-01-18 09:28:54,719 INFO L226 Difference]: Without dead ends: 20682 [2022-01-18 09:28:54,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:28:54,719 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 1091 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:54,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 3158 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20682 states. [2022-01-18 09:28:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20682 to 6122. [2022-01-18 09:28:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:54,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:28:54,868 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:28:54,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:54,868 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:28:54,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:54,869 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:28:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:54,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:54,875 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:54,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 09:28:54,875 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:54,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:54,875 INFO L85 PathProgramCache]: Analyzing trace with hash 444563512, now seen corresponding path program 279 times [2022-01-18 09:28:54,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:54,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754079020] [2022-01-18 09:28:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:54,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:55,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:55,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754079020] [2022-01-18 09:28:55,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754079020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:55,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:55,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:55,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898274600] [2022-01-18 09:28:55,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:55,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:55,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:55,228 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:57,077 INFO L93 Difference]: Finished difference Result 21490 states and 56850 transitions. [2022-01-18 09:28:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 09:28:57,078 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:57,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:57,108 INFO L225 Difference]: With dead ends: 21490 [2022-01-18 09:28:57,108 INFO L226 Difference]: Without dead ends: 21490 [2022-01-18 09:28:57,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=502, Invalid=1220, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:28:57,109 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 1312 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:57,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1312 Valid, 3405 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:28:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21490 states. [2022-01-18 09:28:57,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21490 to 6106. [2022-01-18 09:28:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:28:57,266 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:28:57,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:57,266 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:28:57,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:57,266 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:28:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:57,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:57,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:57,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 09:28:57,272 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:57,273 INFO L85 PathProgramCache]: Analyzing trace with hash -972524268, now seen corresponding path program 280 times [2022-01-18 09:28:57,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:57,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990680064] [2022-01-18 09:28:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:57,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:57,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:57,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990680064] [2022-01-18 09:28:57,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990680064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:57,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:57,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:28:57,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659903239] [2022-01-18 09:28:57,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:57,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:28:57,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:28:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:28:57,598 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:59,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:59,299 INFO L93 Difference]: Finished difference Result 20835 states and 55237 transitions. [2022-01-18 09:28:59,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:28:59,299 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:28:59,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:59,329 INFO L225 Difference]: With dead ends: 20835 [2022-01-18 09:28:59,329 INFO L226 Difference]: Without dead ends: 20835 [2022-01-18 09:28:59,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=476, Invalid=1164, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 09:28:59,329 INFO L933 BasicCegarLoop]: 484 mSDtfsCounter, 1206 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:59,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 3010 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:28:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20835 states. [2022-01-18 09:28:59,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20835 to 6122. [2022-01-18 09:28:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:28:59,482 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:28:59,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:59,482 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:28:59,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:59,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:28:59,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:28:59,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:59,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:59,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 09:28:59,489 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:59,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:59,489 INFO L85 PathProgramCache]: Analyzing trace with hash 726114906, now seen corresponding path program 281 times [2022-01-18 09:28:59,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:59,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210319979] [2022-01-18 09:28:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:59,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:59,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:59,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210319979] [2022-01-18 09:28:59,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210319979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:59,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:59,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:28:59,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699701190] [2022-01-18 09:28:59,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:59,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:28:59,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:28:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:28:59,871 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:01,321 INFO L93 Difference]: Finished difference Result 17788 states and 47305 transitions. [2022-01-18 09:29:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:01,322 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:01,348 INFO L225 Difference]: With dead ends: 17788 [2022-01-18 09:29:01,348 INFO L226 Difference]: Without dead ends: 17788 [2022-01-18 09:29:01,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:29:01,348 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1158 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 4652 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:01,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 4652 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2022-01-18 09:29:01,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 6010. [2022-01-18 09:29:01,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.724034620505992) internal successors, (16366), 6009 states have internal predecessors, (16366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16366 transitions. [2022-01-18 09:29:01,491 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16366 transitions. Word has length 130 [2022-01-18 09:29:01,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:01,491 INFO L470 AbstractCegarLoop]: Abstraction has 6010 states and 16366 transitions. [2022-01-18 09:29:01,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:01,491 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16366 transitions. [2022-01-18 09:29:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:01,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:01,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:01,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 09:29:01,498 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1917551824, now seen corresponding path program 282 times [2022-01-18 09:29:01,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:01,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677307384] [2022-01-18 09:29:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:01,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:01,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:01,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677307384] [2022-01-18 09:29:01,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677307384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:01,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:01,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:29:01,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990519097] [2022-01-18 09:29:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:01,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:29:01,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:29:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:29:01,908 INFO L87 Difference]: Start difference. First operand 6010 states and 16366 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:03,305 INFO L93 Difference]: Finished difference Result 13085 states and 35329 transitions. [2022-01-18 09:29:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:03,306 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:03,325 INFO L225 Difference]: With dead ends: 13085 [2022-01-18 09:29:03,325 INFO L226 Difference]: Without dead ends: 13085 [2022-01-18 09:29:03,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:29:03,325 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1030 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:03,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3944 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:03,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13085 states. [2022-01-18 09:29:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13085 to 6042. [2022-01-18 09:29:03,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-18 09:29:03,439 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-18 09:29:03,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:03,439 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-18 09:29:03,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-18 09:29:03,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:03,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:03,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:03,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 09:29:03,446 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:03,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:03,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1070881780, now seen corresponding path program 283 times [2022-01-18 09:29:03,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:03,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641905531] [2022-01-18 09:29:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:03,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:03,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:03,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641905531] [2022-01-18 09:29:03,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641905531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:03,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:03,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:03,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837395374] [2022-01-18 09:29:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:03,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:03,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:03,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:03,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:03,774 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:04,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:04,948 INFO L93 Difference]: Finished difference Result 16570 states and 44685 transitions. [2022-01-18 09:29:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:04,972 INFO L225 Difference]: With dead ends: 16570 [2022-01-18 09:29:04,972 INFO L226 Difference]: Without dead ends: 16570 [2022-01-18 09:29:04,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:04,972 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1077 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:04,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 3117 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16570 states. [2022-01-18 09:29:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16570 to 6058. [2022-01-18 09:29:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-18 09:29:05,122 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-18 09:29:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:05,123 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-18 09:29:05,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-18 09:29:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:05,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:05,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:05,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 09:29:05,129 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:05,130 INFO L85 PathProgramCache]: Analyzing trace with hash 862258384, now seen corresponding path program 284 times [2022-01-18 09:29:05,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:05,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774547367] [2022-01-18 09:29:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:05,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:05,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:05,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774547367] [2022-01-18 09:29:05,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774547367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:05,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:05,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:05,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514437991] [2022-01-18 09:29:05,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:05,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:05,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:05,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:05,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:05,489 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:07,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:07,003 INFO L93 Difference]: Finished difference Result 16282 states and 43839 transitions. [2022-01-18 09:29:07,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:29:07,003 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:07,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:07,028 INFO L225 Difference]: With dead ends: 16282 [2022-01-18 09:29:07,028 INFO L226 Difference]: Without dead ends: 16282 [2022-01-18 09:29:07,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:29:07,028 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1077 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:07,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 3121 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16282 states. [2022-01-18 09:29:07,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16282 to 6090. [2022-01-18 09:29:07,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:29:07,161 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:29:07,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:07,161 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:29:07,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:07,162 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:29:07,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:07,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:07,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:07,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 09:29:07,168 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:07,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:07,168 INFO L85 PathProgramCache]: Analyzing trace with hash -152279856, now seen corresponding path program 285 times [2022-01-18 09:29:07,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:07,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801538782] [2022-01-18 09:29:07,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:07,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:07,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:07,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801538782] [2022-01-18 09:29:07,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801538782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:07,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:07,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:07,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890271021] [2022-01-18 09:29:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:07,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:07,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:07,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:07,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:07,488 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:08,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:08,616 INFO L93 Difference]: Finished difference Result 15994 states and 42993 transitions. [2022-01-18 09:29:08,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:08,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:08,640 INFO L225 Difference]: With dead ends: 15994 [2022-01-18 09:29:08,640 INFO L226 Difference]: Without dead ends: 15994 [2022-01-18 09:29:08,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:08,640 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1051 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:08,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 2830 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15994 states. [2022-01-18 09:29:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15994 to 6106. [2022-01-18 09:29:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:29:08,771 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:29:08,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:08,771 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:29:08,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:29:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:08,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:08,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:08,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 09:29:08,778 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:08,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:08,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1776229364, now seen corresponding path program 286 times [2022-01-18 09:29:08,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:08,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576505296] [2022-01-18 09:29:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:08,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:09,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:09,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:09,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576505296] [2022-01-18 09:29:09,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576505296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:09,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:09,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:09,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412062352] [2022-01-18 09:29:09,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:09,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:09,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:09,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:09,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:09,098 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:10,236 INFO L93 Difference]: Finished difference Result 14169 states and 37920 transitions. [2022-01-18 09:29:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:10,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:10,257 INFO L225 Difference]: With dead ends: 14169 [2022-01-18 09:29:10,257 INFO L226 Difference]: Without dead ends: 14169 [2022-01-18 09:29:10,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:10,257 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1150 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:10,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 2720 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14169 states. [2022-01-18 09:29:10,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14169 to 6026. [2022-01-18 09:29:10,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.724601593625498) internal successors, (16413), 6025 states have internal predecessors, (16413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:10,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16413 transitions. [2022-01-18 09:29:10,375 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16413 transitions. Word has length 130 [2022-01-18 09:29:10,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:10,375 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 16413 transitions. [2022-01-18 09:29:10,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:10,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16413 transitions. [2022-01-18 09:29:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:10,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:10,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:10,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 09:29:10,382 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:10,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1791353952, now seen corresponding path program 287 times [2022-01-18 09:29:10,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:10,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018371006] [2022-01-18 09:29:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:10,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:10,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018371006] [2022-01-18 09:29:10,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018371006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:10,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:10,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:10,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628113702] [2022-01-18 09:29:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:10,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:10,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:10,699 INFO L87 Difference]: Start difference. First operand 6026 states and 16413 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:11,861 INFO L93 Difference]: Finished difference Result 15893 states and 42375 transitions. [2022-01-18 09:29:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:11,885 INFO L225 Difference]: With dead ends: 15893 [2022-01-18 09:29:11,886 INFO L226 Difference]: Without dead ends: 15893 [2022-01-18 09:29:11,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:11,886 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 958 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:11,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 3284 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15893 states. [2022-01-18 09:29:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15893 to 6058. [2022-01-18 09:29:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6056 states have (on average 2.7257265521796565) internal successors, (16507), 6057 states have internal predecessors, (16507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16507 transitions. [2022-01-18 09:29:12,015 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16507 transitions. Word has length 130 [2022-01-18 09:29:12,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:12,016 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16507 transitions. [2022-01-18 09:29:12,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16507 transitions. [2022-01-18 09:29:12,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:12,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:12,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:12,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 09:29:12,022 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:12,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash -570473180, now seen corresponding path program 288 times [2022-01-18 09:29:12,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:12,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270458073] [2022-01-18 09:29:12,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:12,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:12,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:12,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270458073] [2022-01-18 09:29:12,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270458073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:12,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:12,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:12,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426298937] [2022-01-18 09:29:12,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:12,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:12,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:12,340 INFO L87 Difference]: Start difference. First operand 6058 states and 16507 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:13,489 INFO L93 Difference]: Finished difference Result 19021 states and 50703 transitions. [2022-01-18 09:29:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:13,517 INFO L225 Difference]: With dead ends: 19021 [2022-01-18 09:29:13,517 INFO L226 Difference]: Without dead ends: 19021 [2022-01-18 09:29:13,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:13,518 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1146 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:13,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 3038 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19021 states. [2022-01-18 09:29:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19021 to 6090. [2022-01-18 09:29:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:29:13,660 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:29:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:13,660 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:29:13,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:29:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:13,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:13,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:13,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 09:29:13,666 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:13,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1585011420, now seen corresponding path program 289 times [2022-01-18 09:29:13,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:13,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872803465] [2022-01-18 09:29:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:13,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:14,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:14,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872803465] [2022-01-18 09:29:14,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872803465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:14,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:14,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:14,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652659624] [2022-01-18 09:29:14,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:14,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:14,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:14,011 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:15,190 INFO L93 Difference]: Finished difference Result 18733 states and 49857 transitions. [2022-01-18 09:29:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:15,218 INFO L225 Difference]: With dead ends: 18733 [2022-01-18 09:29:15,218 INFO L226 Difference]: Without dead ends: 18733 [2022-01-18 09:29:15,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:15,218 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1093 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:15,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 3334 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18733 states. [2022-01-18 09:29:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18733 to 6106. [2022-01-18 09:29:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:29:15,362 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:29:15,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:15,362 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:29:15,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:15,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:29:15,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:15,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:15,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:15,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 09:29:15,369 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:15,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1086006368, now seen corresponding path program 290 times [2022-01-18 09:29:15,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:15,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693015697] [2022-01-18 09:29:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:15,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:15,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:15,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693015697] [2022-01-18 09:29:15,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693015697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:15,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:15,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:15,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128887986] [2022-01-18 09:29:15,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:15,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:15,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:15,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:15,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:15,706 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:17,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:17,336 INFO L93 Difference]: Finished difference Result 16908 states and 44784 transitions. [2022-01-18 09:29:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:29:17,336 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:17,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:17,359 INFO L225 Difference]: With dead ends: 16908 [2022-01-18 09:29:17,359 INFO L226 Difference]: Without dead ends: 16908 [2022-01-18 09:29:17,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:29:17,360 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1340 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:17,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 2923 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16908 states. [2022-01-18 09:29:17,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16908 to 6042. [2022-01-18 09:29:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.725165562913907) internal successors, (16460), 6041 states have internal predecessors, (16460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:17,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16460 transitions. [2022-01-18 09:29:17,488 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16460 transitions. Word has length 130 [2022-01-18 09:29:17,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:17,488 INFO L470 AbstractCegarLoop]: Abstraction has 6042 states and 16460 transitions. [2022-01-18 09:29:17,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:17,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16460 transitions. [2022-01-18 09:29:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:17,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:17,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:17,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 09:29:17,494 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash 611759214, now seen corresponding path program 291 times [2022-01-18 09:29:17,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:17,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200048969] [2022-01-18 09:29:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:17,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:17,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:17,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200048969] [2022-01-18 09:29:17,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200048969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:17,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:17,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:17,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046709280] [2022-01-18 09:29:17,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:17,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:17,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:17,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:17,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:17,814 INFO L87 Difference]: Start difference. First operand 6042 states and 16460 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:18,950 INFO L93 Difference]: Finished difference Result 15536 states and 41347 transitions. [2022-01-18 09:29:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:18,951 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:18,972 INFO L225 Difference]: With dead ends: 15536 [2022-01-18 09:29:18,973 INFO L226 Difference]: Without dead ends: 15536 [2022-01-18 09:29:18,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:18,973 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 999 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:18,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 3018 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:19,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15536 states. [2022-01-18 09:29:19,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15536 to 6106. [2022-01-18 09:29:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:19,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:29:19,103 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:29:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:19,103 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:29:19,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:19,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:29:19,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:19,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:19,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:19,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 09:29:19,110 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:19,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash -402779026, now seen corresponding path program 292 times [2022-01-18 09:29:19,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:19,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715072653] [2022-01-18 09:29:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:19,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:19,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:19,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715072653] [2022-01-18 09:29:19,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715072653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:19,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:19,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:19,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793903488] [2022-01-18 09:29:19,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:19,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:19,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:19,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:19,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:19,419 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:20,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:20,564 INFO L93 Difference]: Finished difference Result 18238 states and 48465 transitions. [2022-01-18 09:29:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:20,564 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:20,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:20,591 INFO L225 Difference]: With dead ends: 18238 [2022-01-18 09:29:20,591 INFO L226 Difference]: Without dead ends: 18238 [2022-01-18 09:29:20,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:20,592 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 1087 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:20,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 2991 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18238 states. [2022-01-18 09:29:20,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18238 to 6122. [2022-01-18 09:29:20,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 6120 states have (on average 2.7279411764705883) internal successors, (16695), 6121 states have internal predecessors, (16695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:20,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 16695 transitions. [2022-01-18 09:29:20,733 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 16695 transitions. Word has length 130 [2022-01-18 09:29:20,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:20,734 INFO L470 AbstractCegarLoop]: Abstraction has 6122 states and 16695 transitions. [2022-01-18 09:29:20,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 16695 transitions. [2022-01-18 09:29:20,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:20,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:20,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:20,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 09:29:20,740 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:20,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash -2026728534, now seen corresponding path program 293 times [2022-01-18 09:29:20,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:20,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914443014] [2022-01-18 09:29:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:20,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:21,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914443014] [2022-01-18 09:29:21,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914443014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:21,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:21,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:21,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772219100] [2022-01-18 09:29:21,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:21,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:21,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:21,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:21,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:21,071 INFO L87 Difference]: Start difference. First operand 6122 states and 16695 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:22,708 INFO L93 Difference]: Finished difference Result 16413 states and 43392 transitions. [2022-01-18 09:29:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:29:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:22,732 INFO L225 Difference]: With dead ends: 16413 [2022-01-18 09:29:22,732 INFO L226 Difference]: Without dead ends: 16413 [2022-01-18 09:29:22,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:29:22,733 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1341 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:22,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 2880 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:22,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16413 states. [2022-01-18 09:29:22,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16413 to 6074. [2022-01-18 09:29:22,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 6072 states have (on average 2.7262845849802373) internal successors, (16554), 6073 states have internal predecessors, (16554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 16554 transitions. [2022-01-18 09:29:22,861 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 16554 transitions. Word has length 130 [2022-01-18 09:29:22,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:22,861 INFO L470 AbstractCegarLoop]: Abstraction has 6074 states and 16554 transitions. [2022-01-18 09:29:22,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:22,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 16554 transitions. [2022-01-18 09:29:22,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:22,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:22,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:22,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-18 09:29:22,868 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:22,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1584301300, now seen corresponding path program 294 times [2022-01-18 09:29:22,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:22,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124000608] [2022-01-18 09:29:22,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:22,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:23,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:23,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124000608] [2022-01-18 09:29:23,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124000608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:23,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:23,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:29:23,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524575363] [2022-01-18 09:29:23,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:23,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:29:23,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:23,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:29:23,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:29:23,278 INFO L87 Difference]: Start difference. First operand 6074 states and 16554 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:24,707 INFO L93 Difference]: Finished difference Result 15110 states and 40137 transitions. [2022-01-18 09:29:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:24,707 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:24,730 INFO L225 Difference]: With dead ends: 15110 [2022-01-18 09:29:24,730 INFO L226 Difference]: Without dead ends: 15110 [2022-01-18 09:29:24,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:29:24,730 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1142 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:24,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 4458 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15110 states. [2022-01-18 09:29:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15110 to 6106. [2022-01-18 09:29:24,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:29:24,856 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:29:24,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:24,857 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:29:24,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:24,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:29:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:24,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:24,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:24,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-18 09:29:24,864 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:24,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1086716488, now seen corresponding path program 295 times [2022-01-18 09:29:24,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:24,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204634576] [2022-01-18 09:29:24,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:24,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:25,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:25,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204634576] [2022-01-18 09:29:25,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204634576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:25,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:25,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:25,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630899010] [2022-01-18 09:29:25,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:25,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:25,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:25,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:25,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:25,193 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:26,838 INFO L93 Difference]: Finished difference Result 15918 states and 42000 transitions. [2022-01-18 09:29:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:29:26,839 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:26,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:26,861 INFO L225 Difference]: With dead ends: 15918 [2022-01-18 09:29:26,862 INFO L226 Difference]: Without dead ends: 15918 [2022-01-18 09:29:26,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=451, Invalid=1109, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:29:26,862 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1263 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:26,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 2908 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15918 states. [2022-01-18 09:29:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15918 to 6090. [2022-01-18 09:29:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6090 states, 6088 states have (on average 2.7268396846254928) internal successors, (16601), 6089 states have internal predecessors, (16601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 16601 transitions. [2022-01-18 09:29:26,989 INFO L78 Accepts]: Start accepts. Automaton has 6090 states and 16601 transitions. Word has length 130 [2022-01-18 09:29:26,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:26,989 INFO L470 AbstractCegarLoop]: Abstraction has 6090 states and 16601 transitions. [2022-01-18 09:29:26,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6090 states and 16601 transitions. [2022-01-18 09:29:26,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:26,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:26,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:26,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-18 09:29:26,996 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash -330371292, now seen corresponding path program 296 times [2022-01-18 09:29:26,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:26,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662474326] [2022-01-18 09:29:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:26,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:27,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:27,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662474326] [2022-01-18 09:29:27,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662474326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:27,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:27,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:27,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443376149] [2022-01-18 09:29:27,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:27,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:27,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:27,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:27,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:27,297 INFO L87 Difference]: Start difference. First operand 6090 states and 16601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:28,443 INFO L93 Difference]: Finished difference Result 15263 states and 40387 transitions. [2022-01-18 09:29:28,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:28,444 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:28,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:28,466 INFO L225 Difference]: With dead ends: 15263 [2022-01-18 09:29:28,466 INFO L226 Difference]: Without dead ends: 15263 [2022-01-18 09:29:28,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:28,467 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 1082 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:28,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 3214 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15263 states. [2022-01-18 09:29:28,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15263 to 6106. [2022-01-18 09:29:28,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6106 states, 6104 states have (on average 2.727391874180865) internal successors, (16648), 6105 states have internal predecessors, (16648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 16648 transitions. [2022-01-18 09:29:28,605 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 16648 transitions. Word has length 130 [2022-01-18 09:29:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:28,605 INFO L470 AbstractCegarLoop]: Abstraction has 6106 states and 16648 transitions. [2022-01-18 09:29:28,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:28,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 16648 transitions. [2022-01-18 09:29:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:28,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:28,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:28,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-18 09:29:28,611 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:28,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:28,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1368267882, now seen corresponding path program 297 times [2022-01-18 09:29:28,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:28,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458231102] [2022-01-18 09:29:28,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:28,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:28,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:28,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458231102] [2022-01-18 09:29:28,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458231102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:28,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:28,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:28,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372103239] [2022-01-18 09:29:28,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:28,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:28,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:28,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:28,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:28,916 INFO L87 Difference]: Start difference. First operand 6106 states and 16648 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:29,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:29,987 INFO L93 Difference]: Finished difference Result 12216 states and 32455 transitions. [2022-01-18 09:29:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:30,004 INFO L225 Difference]: With dead ends: 12216 [2022-01-18 09:29:30,004 INFO L226 Difference]: Without dead ends: 12216 [2022-01-18 09:29:30,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:30,004 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1006 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:30,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 2902 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:30,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12216 states. [2022-01-18 09:29:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12216 to 5962. [2022-01-18 09:29:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.722315436241611) internal successors, (16225), 5961 states have internal predecessors, (16225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 16225 transitions. [2022-01-18 09:29:30,108 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 16225 transitions. Word has length 130 [2022-01-18 09:29:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:30,109 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 16225 transitions. [2022-01-18 09:29:30,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 16225 transitions. [2022-01-18 09:29:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:30,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:30,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:30,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-18 09:29:30,115 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:30,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1552401182, now seen corresponding path program 298 times [2022-01-18 09:29:30,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:30,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790034573] [2022-01-18 09:29:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:30,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:30,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:30,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:30,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790034573] [2022-01-18 09:29:30,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790034573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:30,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:30,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:30,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622412658] [2022-01-18 09:29:30,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:30,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:30,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:30,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:30,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:30,446 INFO L87 Difference]: Start difference. First operand 5962 states and 16225 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:31,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:31,842 INFO L93 Difference]: Finished difference Result 10562 states and 28041 transitions. [2022-01-18 09:29:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:29:31,843 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:31,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:31,857 INFO L225 Difference]: With dead ends: 10562 [2022-01-18 09:29:31,857 INFO L226 Difference]: Without dead ends: 10562 [2022-01-18 09:29:31,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:29:31,857 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1351 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:31,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 2516 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-01-18 09:29:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 5978. [2022-01-18 09:29:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5976 states have (on average 2.7228915662650603) internal successors, (16272), 5977 states have internal predecessors, (16272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 16272 transitions. [2022-01-18 09:29:31,951 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 16272 transitions. Word has length 130 [2022-01-18 09:29:31,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:31,951 INFO L470 AbstractCegarLoop]: Abstraction has 5978 states and 16272 transitions. [2022-01-18 09:29:31,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 16272 transitions. [2022-01-18 09:29:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:31,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:31,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:31,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-01-18 09:29:31,957 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash 146237992, now seen corresponding path program 299 times [2022-01-18 09:29:31,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:31,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256247912] [2022-01-18 09:29:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:31,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:32,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:32,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256247912] [2022-01-18 09:29:32,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256247912] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:32,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:32,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:32,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007755685] [2022-01-18 09:29:32,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:32,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:32,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:32,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:32,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:32,259 INFO L87 Difference]: Start difference. First operand 5978 states and 16272 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:33,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:33,344 INFO L93 Difference]: Finished difference Result 10466 states and 27759 transitions. [2022-01-18 09:29:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:33,358 INFO L225 Difference]: With dead ends: 10466 [2022-01-18 09:29:33,358 INFO L226 Difference]: Without dead ends: 10466 [2022-01-18 09:29:33,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:33,359 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1239 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:33,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 2673 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10466 states. [2022-01-18 09:29:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10466 to 5962. [2022-01-18 09:29:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.722315436241611) internal successors, (16225), 5961 states have internal predecessors, (16225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 16225 transitions. [2022-01-18 09:29:33,448 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 16225 transitions. Word has length 130 [2022-01-18 09:29:33,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:33,448 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 16225 transitions. [2022-01-18 09:29:33,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 16225 transitions. [2022-01-18 09:29:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:33,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:33,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:33,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-01-18 09:29:33,454 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:33,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1393801124, now seen corresponding path program 300 times [2022-01-18 09:29:33,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:33,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946121913] [2022-01-18 09:29:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:33,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:33,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:33,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946121913] [2022-01-18 09:29:33,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946121913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:33,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:33,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:29:33,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761523600] [2022-01-18 09:29:33,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:33,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:29:33,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:29:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:29:33,834 INFO L87 Difference]: Start difference. First operand 5962 states and 16225 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:35,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:35,202 INFO L93 Difference]: Finished difference Result 8089 states and 21495 transitions. [2022-01-18 09:29:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:35,202 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:35,213 INFO L225 Difference]: With dead ends: 8089 [2022-01-18 09:29:35,213 INFO L226 Difference]: Without dead ends: 8089 [2022-01-18 09:29:35,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:29:35,214 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 978 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:35,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 4318 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:35,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-01-18 09:29:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 5738. [2022-01-18 09:29:35,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.7139121338912133) internal successors, (15567), 5737 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15567 transitions. [2022-01-18 09:29:35,290 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15567 transitions. Word has length 130 [2022-01-18 09:29:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:35,290 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 15567 transitions. [2022-01-18 09:29:35,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15567 transitions. [2022-01-18 09:29:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:35,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:35,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:35,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-01-18 09:29:35,296 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:35,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash 84420744, now seen corresponding path program 301 times [2022-01-18 09:29:35,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:35,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961404941] [2022-01-18 09:29:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:35,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:35,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:35,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961404941] [2022-01-18 09:29:35,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961404941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:35,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:35,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:35,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631490205] [2022-01-18 09:29:35,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:35,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:35,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:35,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:35,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:35,626 INFO L87 Difference]: Start difference. First operand 5738 states and 15567 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:37,063 INFO L93 Difference]: Finished difference Result 10745 states and 28586 transitions. [2022-01-18 09:29:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:29:37,063 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:37,078 INFO L225 Difference]: With dead ends: 10745 [2022-01-18 09:29:37,078 INFO L226 Difference]: Without dead ends: 10745 [2022-01-18 09:29:37,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:29:37,078 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1352 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:37,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 2827 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:37,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2022-01-18 09:29:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5770. [2022-01-18 09:29:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-18 09:29:37,172 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-18 09:29:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:37,173 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-18 09:29:37,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:37,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-18 09:29:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:37,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:37,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:37,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-01-18 09:29:37,179 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:37,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:37,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1539528764, now seen corresponding path program 302 times [2022-01-18 09:29:37,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:37,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379916473] [2022-01-18 09:29:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:37,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:37,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:37,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:37,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379916473] [2022-01-18 09:29:37,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379916473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:37,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:37,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:37,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091022457] [2022-01-18 09:29:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:37,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:37,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:37,507 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:39,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:39,091 INFO L93 Difference]: Finished difference Result 11553 states and 30449 transitions. [2022-01-18 09:29:39,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:29:39,092 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:39,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:39,106 INFO L225 Difference]: With dead ends: 11553 [2022-01-18 09:29:39,106 INFO L226 Difference]: Without dead ends: 11553 [2022-01-18 09:29:39,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:29:39,107 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1310 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:39,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1310 Valid, 2936 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:39,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2022-01-18 09:29:39,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 5754. [2022-01-18 09:29:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5754 states, 5752 states have (on average 2.7145340751043117) internal successors, (15614), 5753 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 15614 transitions. [2022-01-18 09:29:39,199 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 15614 transitions. Word has length 130 [2022-01-18 09:29:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:39,199 INFO L470 AbstractCegarLoop]: Abstraction has 5754 states and 15614 transitions. [2022-01-18 09:29:39,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 15614 transitions. [2022-01-18 09:29:39,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:39,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:39,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:39,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-01-18 09:29:39,205 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1338350752, now seen corresponding path program 303 times [2022-01-18 09:29:39,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:39,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058919054] [2022-01-18 09:29:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:39,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:39,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:39,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058919054] [2022-01-18 09:29:39,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058919054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:39,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:39,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:39,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397843213] [2022-01-18 09:29:39,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:39,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:39,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:39,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:39,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:39,503 INFO L87 Difference]: Start difference. First operand 5754 states and 15614 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:40,633 INFO L93 Difference]: Finished difference Result 13095 states and 34232 transitions. [2022-01-18 09:29:40,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:40,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:40,652 INFO L225 Difference]: With dead ends: 13095 [2022-01-18 09:29:40,652 INFO L226 Difference]: Without dead ends: 13095 [2022-01-18 09:29:40,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:40,652 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 1161 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:40,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 3098 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:40,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13095 states. [2022-01-18 09:29:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13095 to 5770. [2022-01-18 09:29:40,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-18 09:29:40,755 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-18 09:29:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:40,755 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-18 09:29:40,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:40,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-18 09:29:40,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:40,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:40,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:40,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-01-18 09:29:40,761 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1257977370, now seen corresponding path program 304 times [2022-01-18 09:29:40,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:40,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421892500] [2022-01-18 09:29:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:40,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:41,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:41,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421892500] [2022-01-18 09:29:41,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421892500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:41,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:41,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:41,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859877126] [2022-01-18 09:29:41,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:41,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:41,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:41,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:41,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:41,061 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:42,114 INFO L93 Difference]: Finished difference Result 10048 states and 26300 transitions. [2022-01-18 09:29:42,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:42,115 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:42,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:42,128 INFO L225 Difference]: With dead ends: 10048 [2022-01-18 09:29:42,128 INFO L226 Difference]: Without dead ends: 10048 [2022-01-18 09:29:42,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:42,129 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1088 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:42,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2754 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:29:42,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10048 states. [2022-01-18 09:29:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10048 to 5706. [2022-01-18 09:29:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5704 states have (on average 2.71265778401122) internal successors, (15473), 5705 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:42,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 15473 transitions. [2022-01-18 09:29:42,219 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 15473 transitions. Word has length 130 [2022-01-18 09:29:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:42,219 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 15473 transitions. [2022-01-18 09:29:42,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 15473 transitions. [2022-01-18 09:29:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:42,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:42,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:42,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-01-18 09:29:42,225 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:42,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:42,225 INFO L85 PathProgramCache]: Analyzing trace with hash 300802414, now seen corresponding path program 305 times [2022-01-18 09:29:42,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:42,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518045867] [2022-01-18 09:29:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:42,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:42,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:42,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518045867] [2022-01-18 09:29:42,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518045867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:42,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:42,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:42,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397658186] [2022-01-18 09:29:42,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:42,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:42,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:42,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:42,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:42,565 INFO L87 Difference]: Start difference. First operand 5706 states and 15473 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:43,683 INFO L93 Difference]: Finished difference Result 11331 states and 30266 transitions. [2022-01-18 09:29:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:43,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:43,699 INFO L225 Difference]: With dead ends: 11331 [2022-01-18 09:29:43,700 INFO L226 Difference]: Without dead ends: 11331 [2022-01-18 09:29:43,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:43,700 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1232 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:43,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 2864 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:43,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11331 states. [2022-01-18 09:29:43,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11331 to 5770. [2022-01-18 09:29:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-18 09:29:43,799 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-18 09:29:43,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:43,799 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-18 09:29:43,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:43,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-18 09:29:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:43,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:43,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:43,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-01-18 09:29:43,805 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:43,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:43,805 INFO L85 PathProgramCache]: Analyzing trace with hash -148827598, now seen corresponding path program 306 times [2022-01-18 09:29:43,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:43,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225746247] [2022-01-18 09:29:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:43,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:44,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:44,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225746247] [2022-01-18 09:29:44,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225746247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:44,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:44,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:29:44,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590665816] [2022-01-18 09:29:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:44,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:29:44,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:29:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:29:44,193 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:45,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:45,608 INFO L93 Difference]: Finished difference Result 14033 states and 37384 transitions. [2022-01-18 09:29:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:45,627 INFO L225 Difference]: With dead ends: 14033 [2022-01-18 09:29:45,628 INFO L226 Difference]: Without dead ends: 14033 [2022-01-18 09:29:45,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:29:45,628 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1222 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:45,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 4096 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:45,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14033 states. [2022-01-18 09:29:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14033 to 5786. [2022-01-18 09:29:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5786 states, 5784 states have (on average 2.715767634854772) internal successors, (15708), 5785 states have internal predecessors, (15708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5786 states to 5786 states and 15708 transitions. [2022-01-18 09:29:45,737 INFO L78 Accepts]: Start accepts. Automaton has 5786 states and 15708 transitions. Word has length 130 [2022-01-18 09:29:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:45,737 INFO L470 AbstractCegarLoop]: Abstraction has 5786 states and 15708 transitions. [2022-01-18 09:29:45,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:45,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5786 states and 15708 transitions. [2022-01-18 09:29:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:45,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:45,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:45,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-01-18 09:29:45,742 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:45,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1772777106, now seen corresponding path program 307 times [2022-01-18 09:29:45,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:45,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929886958] [2022-01-18 09:29:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:45,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:46,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:46,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929886958] [2022-01-18 09:29:46,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929886958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:46,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:46,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:46,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818637852] [2022-01-18 09:29:46,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:46,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:46,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:46,069 INFO L87 Difference]: Start difference. First operand 5786 states and 15708 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:47,628 INFO L93 Difference]: Finished difference Result 12208 states and 32311 transitions. [2022-01-18 09:29:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:29:47,628 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:47,644 INFO L225 Difference]: With dead ends: 12208 [2022-01-18 09:29:47,644 INFO L226 Difference]: Without dead ends: 12208 [2022-01-18 09:29:47,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:29:47,644 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1315 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:47,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 2907 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2022-01-18 09:29:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 5738. [2022-01-18 09:29:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.7139121338912133) internal successors, (15567), 5737 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:47,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15567 transitions. [2022-01-18 09:29:47,762 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15567 transitions. Word has length 130 [2022-01-18 09:29:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:47,762 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 15567 transitions. [2022-01-18 09:29:47,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15567 transitions. [2022-01-18 09:29:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:47,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:47,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:47,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-01-18 09:29:47,768 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:47,768 INFO L85 PathProgramCache]: Analyzing trace with hash 781827896, now seen corresponding path program 308 times [2022-01-18 09:29:47,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:47,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480587328] [2022-01-18 09:29:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:47,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:48,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480587328] [2022-01-18 09:29:48,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480587328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:48,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:48,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:48,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187649052] [2022-01-18 09:29:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:48,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:48,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:48,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:48,116 INFO L87 Difference]: Start difference. First operand 5738 states and 15567 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:49,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:49,555 INFO L93 Difference]: Finished difference Result 13485 states and 35515 transitions. [2022-01-18 09:29:49,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:49,556 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:49,575 INFO L225 Difference]: With dead ends: 13485 [2022-01-18 09:29:49,575 INFO L226 Difference]: Without dead ends: 13485 [2022-01-18 09:29:49,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:29:49,575 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1152 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:49,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 3154 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:29:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13485 states. [2022-01-18 09:29:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13485 to 5770. [2022-01-18 09:29:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:49,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-18 09:29:49,680 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-18 09:29:49,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:49,680 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-18 09:29:49,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:49,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-18 09:29:49,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:49,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:49,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:49,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-01-18 09:29:49,686 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash -842121612, now seen corresponding path program 309 times [2022-01-18 09:29:49,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:49,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261911005] [2022-01-18 09:29:49,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:49,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:49,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:49,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261911005] [2022-01-18 09:29:49,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261911005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:49,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:49,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:49,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276001498] [2022-01-18 09:29:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:49,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:49,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:49,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:49,995 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:51,087 INFO L93 Difference]: Finished difference Result 14293 states and 37378 transitions. [2022-01-18 09:29:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:51,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:51,106 INFO L225 Difference]: With dead ends: 14293 [2022-01-18 09:29:51,107 INFO L226 Difference]: Without dead ends: 14293 [2022-01-18 09:29:51,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:51,107 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 1339 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:51,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1339 Valid, 2743 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14293 states. [2022-01-18 09:29:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14293 to 5754. [2022-01-18 09:29:51,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5754 states, 5752 states have (on average 2.7145340751043117) internal successors, (15614), 5753 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:51,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 15614 transitions. [2022-01-18 09:29:51,204 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 15614 transitions. Word has length 130 [2022-01-18 09:29:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:51,205 INFO L470 AbstractCegarLoop]: Abstraction has 5754 states and 15614 transitions. [2022-01-18 09:29:51,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:51,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 15614 transitions. [2022-01-18 09:29:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:51,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:51,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:51,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-01-18 09:29:51,210 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:51,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:51,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2035757904, now seen corresponding path program 310 times [2022-01-18 09:29:51,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:51,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311155229] [2022-01-18 09:29:51,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:51,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:51,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:51,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311155229] [2022-01-18 09:29:51,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311155229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:51,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:51,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:51,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587335140] [2022-01-18 09:29:51,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:51,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:51,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:51,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:51,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:51,544 INFO L87 Difference]: Start difference. First operand 5754 states and 15614 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:53,152 INFO L93 Difference]: Finished difference Result 13638 states and 35765 transitions. [2022-01-18 09:29:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:29:53,152 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:53,170 INFO L225 Difference]: With dead ends: 13638 [2022-01-18 09:29:53,170 INFO L226 Difference]: Without dead ends: 13638 [2022-01-18 09:29:53,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:29:53,171 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1206 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:53,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 2801 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:53,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2022-01-18 09:29:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 5770. [2022-01-18 09:29:53,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.715152565880721) internal successors, (15661), 5769 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15661 transitions. [2022-01-18 09:29:53,276 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15661 transitions. Word has length 130 [2022-01-18 09:29:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:53,276 INFO L470 AbstractCegarLoop]: Abstraction has 5770 states and 15661 transitions. [2022-01-18 09:29:53,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:53,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15661 transitions. [2022-01-18 09:29:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:53,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:53,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:53,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-01-18 09:29:53,283 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:53,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:53,283 INFO L85 PathProgramCache]: Analyzing trace with hash -560570218, now seen corresponding path program 311 times [2022-01-18 09:29:53,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:53,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717797425] [2022-01-18 09:29:53,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:53,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:53,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:53,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717797425] [2022-01-18 09:29:53,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717797425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:53,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:53,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:53,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778648915] [2022-01-18 09:29:53,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:53,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:53,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:53,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:53,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:53,584 INFO L87 Difference]: Start difference. First operand 5770 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:54,640 INFO L93 Difference]: Finished difference Result 10591 states and 27833 transitions. [2022-01-18 09:29:54,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:54,654 INFO L225 Difference]: With dead ends: 10591 [2022-01-18 09:29:54,655 INFO L226 Difference]: Without dead ends: 10591 [2022-01-18 09:29:54,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:54,658 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 1157 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:54,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 2777 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:54,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10591 states. [2022-01-18 09:29:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10591 to 5642. [2022-01-18 09:29:54,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 5640 states have (on average 2.7101063829787235) internal successors, (15285), 5641 states have internal predecessors, (15285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:54,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 15285 transitions. [2022-01-18 09:29:54,744 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 15285 transitions. Word has length 130 [2022-01-18 09:29:54,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:54,745 INFO L470 AbstractCegarLoop]: Abstraction has 5642 states and 15285 transitions. [2022-01-18 09:29:54,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 15285 transitions. [2022-01-18 09:29:54,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:54,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:54,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:54,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-01-18 09:29:54,750 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:54,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:54,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1672710068, now seen corresponding path program 312 times [2022-01-18 09:29:54,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:54,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663918769] [2022-01-18 09:29:54,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:54,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:55,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:55,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:55,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663918769] [2022-01-18 09:29:55,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663918769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:55,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:55,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:55,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730550802] [2022-01-18 09:29:55,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:55,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:55,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:55,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:55,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:55,100 INFO L87 Difference]: Start difference. First operand 5642 states and 15285 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:56,491 INFO L93 Difference]: Finished difference Result 11960 states and 32093 transitions. [2022-01-18 09:29:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:29:56,492 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:56,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:56,507 INFO L225 Difference]: With dead ends: 11960 [2022-01-18 09:29:56,507 INFO L226 Difference]: Without dead ends: 11960 [2022-01-18 09:29:56,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:29:56,508 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1229 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:56,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 2570 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11960 states. [2022-01-18 09:29:56,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11960 to 5674. [2022-01-18 09:29:56,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5674 states, 5672 states have (on average 2.7113892806770097) internal successors, (15379), 5673 states have internal predecessors, (15379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 15379 transitions. [2022-01-18 09:29:56,596 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 15379 transitions. Word has length 130 [2022-01-18 09:29:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:56,596 INFO L470 AbstractCegarLoop]: Abstraction has 5674 states and 15379 transitions. [2022-01-18 09:29:56,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 15379 transitions. [2022-01-18 09:29:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:56,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:56,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:56,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-01-18 09:29:56,602 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash 260430096, now seen corresponding path program 313 times [2022-01-18 09:29:56,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:56,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700105762] [2022-01-18 09:29:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:56,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:56,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:56,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700105762] [2022-01-18 09:29:56,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700105762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:56,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:56,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:29:56,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305320955] [2022-01-18 09:29:56,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:56,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:29:56,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:56,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:29:56,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:29:56,923 INFO L87 Difference]: Start difference. First operand 5674 states and 15379 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:58,098 INFO L93 Difference]: Finished difference Result 15088 states and 40421 transitions. [2022-01-18 09:29:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:29:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:29:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:58,120 INFO L225 Difference]: With dead ends: 15088 [2022-01-18 09:29:58,120 INFO L226 Difference]: Without dead ends: 15088 [2022-01-18 09:29:58,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:29:58,120 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1044 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:58,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 3112 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:29:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15088 states. [2022-01-18 09:29:58,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15088 to 5706. [2022-01-18 09:29:58,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5704 states have (on average 2.71265778401122) internal successors, (15473), 5705 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:58,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 15473 transitions. [2022-01-18 09:29:58,234 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 15473 transitions. Word has length 130 [2022-01-18 09:29:58,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:58,234 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 15473 transitions. [2022-01-18 09:29:58,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:58,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 15473 transitions. [2022-01-18 09:29:58,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:29:58,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:58,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:58,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-01-18 09:29:58,240 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash -754108144, now seen corresponding path program 314 times [2022-01-18 09:29:58,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:58,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235167819] [2022-01-18 09:29:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:58,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:58,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:58,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:58,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235167819] [2022-01-18 09:29:58,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235167819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:58,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:58,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:29:58,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076302526] [2022-01-18 09:29:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:58,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:29:58,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:29:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:29:58,578 INFO L87 Difference]: Start difference. First operand 5706 states and 15473 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:00,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:00,100 INFO L93 Difference]: Finished difference Result 14800 states and 39575 transitions. [2022-01-18 09:30:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:30:00,100 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:00,120 INFO L225 Difference]: With dead ends: 14800 [2022-01-18 09:30:00,120 INFO L226 Difference]: Without dead ends: 14800 [2022-01-18 09:30:00,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:30:00,120 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1227 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:00,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 2936 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14800 states. [2022-01-18 09:30:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14800 to 5722. [2022-01-18 09:30:00,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:00,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-18 09:30:00,223 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-18 09:30:00,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:00,223 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-18 09:30:00,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:00,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-18 09:30:00,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:00,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:00,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:00,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-01-18 09:30:00,228 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:00,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1916909644, now seen corresponding path program 315 times [2022-01-18 09:30:00,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:00,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622187763] [2022-01-18 09:30:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:00,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:00,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:00,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:00,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622187763] [2022-01-18 09:30:00,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622187763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:00,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:00,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:00,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372276159] [2022-01-18 09:30:00,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:00,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:00,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:00,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:00,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:00,566 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:02,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:02,111 INFO L93 Difference]: Finished difference Result 12975 states and 34502 transitions. [2022-01-18 09:30:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:30:02,111 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:02,129 INFO L225 Difference]: With dead ends: 12975 [2022-01-18 09:30:02,130 INFO L226 Difference]: Without dead ends: 12975 [2022-01-18 09:30:02,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:30:02,130 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1331 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:02,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1331 Valid, 2894 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12975 states. [2022-01-18 09:30:02,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12975 to 5658. [2022-01-18 09:30:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5658 states, 5656 states have (on average 2.710749646393211) internal successors, (15332), 5657 states have internal predecessors, (15332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:02,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5658 states to 5658 states and 15332 transitions. [2022-01-18 09:30:02,253 INFO L78 Accepts]: Start accepts. Automaton has 5658 states and 15332 transitions. Word has length 130 [2022-01-18 09:30:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:02,253 INFO L470 AbstractCegarLoop]: Abstraction has 5658 states and 15332 transitions. [2022-01-18 09:30:02,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:02,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5658 states and 15332 transitions. [2022-01-18 09:30:02,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:02,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:02,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:02,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-01-18 09:30:02,258 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:02,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:02,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1442662490, now seen corresponding path program 316 times [2022-01-18 09:30:02,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:02,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92673658] [2022-01-18 09:30:02,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:02,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:02,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92673658] [2022-01-18 09:30:02,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92673658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:02,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:02,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:02,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148157798] [2022-01-18 09:30:02,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:02,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:02,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:02,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:02,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:02,600 INFO L87 Difference]: Start difference. First operand 5658 states and 15332 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:04,171 INFO L93 Difference]: Finished difference Result 14454 states and 38258 transitions. [2022-01-18 09:30:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:04,171 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:04,192 INFO L225 Difference]: With dead ends: 14454 [2022-01-18 09:30:04,192 INFO L226 Difference]: Without dead ends: 14454 [2022-01-18 09:30:04,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:30:04,192 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1093 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:04,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 2867 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14454 states. [2022-01-18 09:30:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14454 to 5722. [2022-01-18 09:30:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-18 09:30:04,294 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-18 09:30:04,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:04,294 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-18 09:30:04,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-18 09:30:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:04,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:04,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:04,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-01-18 09:30:04,300 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:04,300 INFO L85 PathProgramCache]: Analyzing trace with hash 428124250, now seen corresponding path program 317 times [2022-01-18 09:30:04,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:04,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767603517] [2022-01-18 09:30:04,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:04,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:04,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:04,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767603517] [2022-01-18 09:30:04,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767603517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:04,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:04,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:04,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298605116] [2022-01-18 09:30:04,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:04,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:04,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:04,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:04,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:04,611 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:05,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:05,742 INFO L93 Difference]: Finished difference Result 17156 states and 45376 transitions. [2022-01-18 09:30:05,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:05,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:05,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:05,767 INFO L225 Difference]: With dead ends: 17156 [2022-01-18 09:30:05,767 INFO L226 Difference]: Without dead ends: 17156 [2022-01-18 09:30:05,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:05,768 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1215 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:05,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 2864 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:05,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17156 states. [2022-01-18 09:30:05,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17156 to 5738. [2022-01-18 09:30:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5736 states have (on average 2.7139121338912133) internal successors, (15567), 5737 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:05,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 15567 transitions. [2022-01-18 09:30:05,903 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 15567 transitions. Word has length 130 [2022-01-18 09:30:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:05,903 INFO L470 AbstractCegarLoop]: Abstraction has 5738 states and 15567 transitions. [2022-01-18 09:30:05,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:05,903 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 15567 transitions. [2022-01-18 09:30:05,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:05,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:05,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:05,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-01-18 09:30:05,909 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:05,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:05,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1195825258, now seen corresponding path program 318 times [2022-01-18 09:30:05,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:05,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506875465] [2022-01-18 09:30:05,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:05,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:06,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:06,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506875465] [2022-01-18 09:30:06,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506875465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:06,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:06,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:06,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432318878] [2022-01-18 09:30:06,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:06,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:06,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:06,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:06,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:06,223 INFO L87 Difference]: Start difference. First operand 5738 states and 15567 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:07,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:07,419 INFO L93 Difference]: Finished difference Result 15331 states and 40303 transitions. [2022-01-18 09:30:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:07,420 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:07,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:07,442 INFO L225 Difference]: With dead ends: 15331 [2022-01-18 09:30:07,442 INFO L226 Difference]: Without dead ends: 15331 [2022-01-18 09:30:07,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:07,442 INFO L933 BasicCegarLoop]: 473 mSDtfsCounter, 1226 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:07,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1226 Valid, 3177 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:07,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2022-01-18 09:30:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 5690. [2022-01-18 09:30:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5688 states have (on average 2.712025316455696) internal successors, (15426), 5689 states have internal predecessors, (15426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 15426 transitions. [2022-01-18 09:30:07,552 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 15426 transitions. Word has length 130 [2022-01-18 09:30:07,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:07,552 INFO L470 AbstractCegarLoop]: Abstraction has 5690 states and 15426 transitions. [2022-01-18 09:30:07,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 15426 transitions. [2022-01-18 09:30:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:07,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:07,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:07,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-01-18 09:30:07,557 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:07,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:07,558 INFO L85 PathProgramCache]: Analyzing trace with hash -753398024, now seen corresponding path program 319 times [2022-01-18 09:30:07,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:07,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070083005] [2022-01-18 09:30:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:07,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:07,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:07,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070083005] [2022-01-18 09:30:07,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070083005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:07,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:07,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:07,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697670805] [2022-01-18 09:30:07,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:07,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:07,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:07,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:07,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:07,883 INFO L87 Difference]: Start difference. First operand 5690 states and 15426 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:09,447 INFO L93 Difference]: Finished difference Result 14028 states and 37048 transitions. [2022-01-18 09:30:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:09,447 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:09,467 INFO L225 Difference]: With dead ends: 14028 [2022-01-18 09:30:09,467 INFO L226 Difference]: Without dead ends: 14028 [2022-01-18 09:30:09,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:30:09,468 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 1260 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:09,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 2836 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14028 states. [2022-01-18 09:30:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14028 to 5722. [2022-01-18 09:30:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-18 09:30:09,575 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-18 09:30:09,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:09,575 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-18 09:30:09,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:09,575 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-18 09:30:09,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:09,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:09,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:09,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-01-18 09:30:09,581 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1917619764, now seen corresponding path program 320 times [2022-01-18 09:30:09,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:09,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836104247] [2022-01-18 09:30:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:09,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:09,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:09,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836104247] [2022-01-18 09:30:09,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836104247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:09,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:09,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:09,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229382292] [2022-01-18 09:30:09,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:09,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:09,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:09,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:09,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:09,882 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:11,040 INFO L93 Difference]: Finished difference Result 14836 states and 38911 transitions. [2022-01-18 09:30:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:11,040 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:11,061 INFO L225 Difference]: With dead ends: 14836 [2022-01-18 09:30:11,061 INFO L226 Difference]: Without dead ends: 14836 [2022-01-18 09:30:11,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:11,061 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 1131 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:11,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 3174 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14836 states. [2022-01-18 09:30:11,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14836 to 5706. [2022-01-18 09:30:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5704 states have (on average 2.71265778401122) internal successors, (15473), 5705 states have internal predecessors, (15473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 15473 transitions. [2022-01-18 09:30:11,165 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 15473 transitions. Word has length 130 [2022-01-18 09:30:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:11,165 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 15473 transitions. [2022-01-18 09:30:11,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 15473 transitions. [2022-01-18 09:30:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:11,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:11,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:11,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-01-18 09:30:11,171 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:11,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash 500531984, now seen corresponding path program 321 times [2022-01-18 09:30:11,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:11,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297104312] [2022-01-18 09:30:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:11,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:11,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:11,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297104312] [2022-01-18 09:30:11,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297104312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:11,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:11,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:11,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563480679] [2022-01-18 09:30:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:11,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:11,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:11,516 INFO L87 Difference]: Start difference. First operand 5706 states and 15473 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:13,126 INFO L93 Difference]: Finished difference Result 14181 states and 37298 transitions. [2022-01-18 09:30:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:13,146 INFO L225 Difference]: With dead ends: 14181 [2022-01-18 09:30:13,146 INFO L226 Difference]: Without dead ends: 14181 [2022-01-18 09:30:13,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:30:13,147 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1305 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:13,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1305 Valid, 3062 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14181 states. [2022-01-18 09:30:13,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14181 to 5722. [2022-01-18 09:30:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5722 states, 5720 states have (on average 2.7132867132867133) internal successors, (15520), 5721 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 15520 transitions. [2022-01-18 09:30:13,248 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 15520 transitions. Word has length 130 [2022-01-18 09:30:13,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:13,248 INFO L470 AbstractCegarLoop]: Abstraction has 5722 states and 15520 transitions. [2022-01-18 09:30:13,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 15520 transitions. [2022-01-18 09:30:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:13,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:13,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:13,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-01-18 09:30:13,254 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:13,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:13,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2095796138, now seen corresponding path program 322 times [2022-01-18 09:30:13,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:13,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651718390] [2022-01-18 09:30:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:13,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:13,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:13,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651718390] [2022-01-18 09:30:13,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651718390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:13,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:13,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:13,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525870398] [2022-01-18 09:30:13,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:13,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:13,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:13,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:13,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:13,583 INFO L87 Difference]: Start difference. First operand 5722 states and 15520 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:15,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:15,018 INFO L93 Difference]: Finished difference Result 11134 states and 29366 transitions. [2022-01-18 09:30:15,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:30:15,019 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:15,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:15,034 INFO L225 Difference]: With dead ends: 11134 [2022-01-18 09:30:15,034 INFO L226 Difference]: Without dead ends: 11134 [2022-01-18 09:30:15,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:30:15,034 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1100 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:15,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1100 Valid, 2714 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:15,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11134 states. [2022-01-18 09:30:15,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11134 to 5610. [2022-01-18 09:30:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5610 states, 5608 states have (on average 2.7088088445078458) internal successors, (15191), 5609 states have internal predecessors, (15191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5610 states to 5610 states and 15191 transitions. [2022-01-18 09:30:15,129 INFO L78 Accepts]: Start accepts. Automaton has 5610 states and 15191 transitions. Word has length 130 [2022-01-18 09:30:15,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:15,129 INFO L470 AbstractCegarLoop]: Abstraction has 5610 states and 15191 transitions. [2022-01-18 09:30:15,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:15,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5610 states and 15191 transitions. [2022-01-18 09:30:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:15,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:15,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:15,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-01-18 09:30:15,135 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:15,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1826462292, now seen corresponding path program 323 times [2022-01-18 09:30:15,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:15,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719448562] [2022-01-18 09:30:15,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:15,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:15,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:15,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719448562] [2022-01-18 09:30:15,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719448562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:15,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:15,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:15,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836894786] [2022-01-18 09:30:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:15,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:15,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:15,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:15,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:15,494 INFO L87 Difference]: Start difference. First operand 5610 states and 15191 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:16,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:16,900 INFO L93 Difference]: Finished difference Result 12365 states and 33262 transitions. [2022-01-18 09:30:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:30:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:16,917 INFO L225 Difference]: With dead ends: 12365 [2022-01-18 09:30:16,917 INFO L226 Difference]: Without dead ends: 12365 [2022-01-18 09:30:16,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:30:16,917 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 990 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:16,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 2927 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12365 states. [2022-01-18 09:30:16,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12365 to 5642. [2022-01-18 09:30:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 5640 states have (on average 2.7101063829787235) internal successors, (15285), 5641 states have internal predecessors, (15285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 15285 transitions. [2022-01-18 09:30:17,012 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 15285 transitions. Word has length 130 [2022-01-18 09:30:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:17,012 INFO L470 AbstractCegarLoop]: Abstraction has 5642 states and 15285 transitions. [2022-01-18 09:30:17,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 15285 transitions. [2022-01-18 09:30:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:17,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:17,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:17,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-01-18 09:30:17,018 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:17,019 INFO L85 PathProgramCache]: Analyzing trace with hash -519928600, now seen corresponding path program 324 times [2022-01-18 09:30:17,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:17,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657433928] [2022-01-18 09:30:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:17,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:17,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:17,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657433928] [2022-01-18 09:30:17,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657433928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:17,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:17,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:30:17,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354823371] [2022-01-18 09:30:17,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:17,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:30:17,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:17,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:30:17,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:30:17,588 INFO L87 Difference]: Start difference. First operand 5642 states and 15285 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:19,873 INFO L93 Difference]: Finished difference Result 9432 states and 24747 transitions. [2022-01-18 09:30:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:30:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:19,885 INFO L225 Difference]: With dead ends: 9432 [2022-01-18 09:30:19,885 INFO L226 Difference]: Without dead ends: 9432 [2022-01-18 09:30:19,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=523, Invalid=1639, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:30:19,886 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1060 mSDsluCounter, 3234 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:19,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 3518 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2022-01-18 09:30:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 5736. [2022-01-18 09:30:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5734 states have (on average 2.706662016044646) internal successors, (15520), 5735 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:19,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15520 transitions. [2022-01-18 09:30:19,962 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15520 transitions. Word has length 130 [2022-01-18 09:30:19,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:19,962 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 15520 transitions. [2022-01-18 09:30:19,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:19,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15520 transitions. [2022-01-18 09:30:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:19,967 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:19,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:19,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-01-18 09:30:19,968 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:19,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:19,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1952660164, now seen corresponding path program 325 times [2022-01-18 09:30:19,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:19,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853605232] [2022-01-18 09:30:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:19,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:20,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:20,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853605232] [2022-01-18 09:30:20,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853605232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:20,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:20,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:20,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637177400] [2022-01-18 09:30:20,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:20,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:20,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:20,309 INFO L87 Difference]: Start difference. First operand 5736 states and 15520 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:21,857 INFO L93 Difference]: Finished difference Result 17092 states and 45712 transitions. [2022-01-18 09:30:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:21,858 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:21,881 INFO L225 Difference]: With dead ends: 17092 [2022-01-18 09:30:21,881 INFO L226 Difference]: Without dead ends: 17092 [2022-01-18 09:30:21,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:30:21,881 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1049 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:21,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 2936 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:21,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17092 states. [2022-01-18 09:30:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17092 to 5768. [2022-01-18 09:30:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.707943114810961) internal successors, (15614), 5767 states have internal predecessors, (15614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15614 transitions. [2022-01-18 09:30:22,019 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15614 transitions. Word has length 130 [2022-01-18 09:30:22,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:22,019 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 15614 transitions. [2022-01-18 09:30:22,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15614 transitions. [2022-01-18 09:30:22,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:22,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:22,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:22,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-01-18 09:30:22,025 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:22,026 INFO L85 PathProgramCache]: Analyzing trace with hash -19520000, now seen corresponding path program 326 times [2022-01-18 09:30:22,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:22,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536075538] [2022-01-18 09:30:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:22,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:22,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:22,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536075538] [2022-01-18 09:30:22,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536075538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:22,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:22,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:22,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151396961] [2022-01-18 09:30:22,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:22,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:22,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:22,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:22,349 INFO L87 Difference]: Start difference. First operand 5768 states and 15614 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:23,571 INFO L93 Difference]: Finished difference Result 20220 states and 54040 transitions. [2022-01-18 09:30:23,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:23,572 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:23,599 INFO L225 Difference]: With dead ends: 20220 [2022-01-18 09:30:23,599 INFO L226 Difference]: Without dead ends: 20220 [2022-01-18 09:30:23,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:23,600 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1071 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:23,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 3350 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20220 states. [2022-01-18 09:30:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20220 to 5800. [2022-01-18 09:30:23,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5798 states have (on average 2.709210072438772) internal successors, (15708), 5799 states have internal predecessors, (15708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 15708 transitions. [2022-01-18 09:30:23,751 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 15708 transitions. Word has length 130 [2022-01-18 09:30:23,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:23,751 INFO L470 AbstractCegarLoop]: Abstraction has 5800 states and 15708 transitions. [2022-01-18 09:30:23,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:23,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 15708 transitions. [2022-01-18 09:30:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:23,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:23,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:23,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-01-18 09:30:23,757 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:23,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1034058240, now seen corresponding path program 327 times [2022-01-18 09:30:23,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:23,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125814722] [2022-01-18 09:30:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:23,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:24,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:24,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125814722] [2022-01-18 09:30:24,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125814722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:24,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:24,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:24,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486077306] [2022-01-18 09:30:24,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:24,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:24,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:24,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:24,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:24,101 INFO L87 Difference]: Start difference. First operand 5800 states and 15708 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:25,780 INFO L93 Difference]: Finished difference Result 19932 states and 53194 transitions. [2022-01-18 09:30:25,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:30:25,780 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:25,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:25,808 INFO L225 Difference]: With dead ends: 19932 [2022-01-18 09:30:25,808 INFO L226 Difference]: Without dead ends: 19932 [2022-01-18 09:30:25,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:30:25,809 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1173 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:25,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 3330 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:25,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19932 states. [2022-01-18 09:30:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19932 to 5816. [2022-01-18 09:30:25,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-18 09:30:25,946 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-18 09:30:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:25,946 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-18 09:30:25,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-18 09:30:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:25,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:25,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:25,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-01-18 09:30:25,952 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:25,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1636959548, now seen corresponding path program 328 times [2022-01-18 09:30:25,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:25,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833914746] [2022-01-18 09:30:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:25,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:26,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:26,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833914746] [2022-01-18 09:30:26,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833914746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:26,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:26,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:26,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294142511] [2022-01-18 09:30:26,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:26,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:26,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:26,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:26,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:26,316 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:27,999 INFO L93 Difference]: Finished difference Result 18107 states and 48121 transitions. [2022-01-18 09:30:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:30:27,999 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:28,024 INFO L225 Difference]: With dead ends: 18107 [2022-01-18 09:30:28,024 INFO L226 Difference]: Without dead ends: 18107 [2022-01-18 09:30:28,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:30:28,024 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1316 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:28,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1316 Valid, 3222 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18107 states. [2022-01-18 09:30:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18107 to 5752. [2022-01-18 09:30:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 5750 states have (on average 2.7073043478260868) internal successors, (15567), 5751 states have internal predecessors, (15567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:28,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 15567 transitions. [2022-01-18 09:30:28,147 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 15567 transitions. Word has length 130 [2022-01-18 09:30:28,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:28,147 INFO L470 AbstractCegarLoop]: Abstraction has 5752 states and 15567 transitions. [2022-01-18 09:30:28,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 15567 transitions. [2022-01-18 09:30:28,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:28,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:28,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:28,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-01-18 09:30:28,153 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1162712394, now seen corresponding path program 329 times [2022-01-18 09:30:28,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:28,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407173468] [2022-01-18 09:30:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:28,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:28,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:28,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407173468] [2022-01-18 09:30:28,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407173468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:28,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:28,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:30:28,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689073440] [2022-01-18 09:30:28,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:28,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:30:28,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:28,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:30:28,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:30:28,546 INFO L87 Difference]: Start difference. First operand 5752 states and 15567 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:29,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:29,988 INFO L93 Difference]: Finished difference Result 16911 states and 45105 transitions. [2022-01-18 09:30:29,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:29,988 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:30,011 INFO L225 Difference]: With dead ends: 16911 [2022-01-18 09:30:30,011 INFO L226 Difference]: Without dead ends: 16911 [2022-01-18 09:30:30,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:30:30,012 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 1239 mSDsluCounter, 4014 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:30,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 4397 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:30,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16911 states. [2022-01-18 09:30:30,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16911 to 5816. [2022-01-18 09:30:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-18 09:30:30,128 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-18 09:30:30,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:30,129 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-18 09:30:30,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:30,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-18 09:30:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:30,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:30,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:30,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-01-18 09:30:30,134 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:30,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash 148174154, now seen corresponding path program 330 times [2022-01-18 09:30:30,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:30,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55536721] [2022-01-18 09:30:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:30,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:30,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:30,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55536721] [2022-01-18 09:30:30,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55536721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:30,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:30,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:30,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894571387] [2022-01-18 09:30:30,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:30,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:30,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:30,443 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:31,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:31,655 INFO L93 Difference]: Finished difference Result 19613 states and 52223 transitions. [2022-01-18 09:30:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:31,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:31,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:31,683 INFO L225 Difference]: With dead ends: 19613 [2022-01-18 09:30:31,683 INFO L226 Difference]: Without dead ends: 19613 [2022-01-18 09:30:31,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:31,683 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 1112 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:31,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 3234 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19613 states. [2022-01-18 09:30:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19613 to 5832. [2022-01-18 09:30:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 5830 states have (on average 2.7104631217838766) internal successors, (15802), 5831 states have internal predecessors, (15802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 15802 transitions. [2022-01-18 09:30:31,821 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 15802 transitions. Word has length 130 [2022-01-18 09:30:31,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:31,821 INFO L470 AbstractCegarLoop]: Abstraction has 5832 states and 15802 transitions. [2022-01-18 09:30:31,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 15802 transitions. [2022-01-18 09:30:31,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:31,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:31,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:31,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-01-18 09:30:31,827 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:31,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1475775354, now seen corresponding path program 331 times [2022-01-18 09:30:31,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:31,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287417953] [2022-01-18 09:30:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:31,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:32,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:32,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:32,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287417953] [2022-01-18 09:30:32,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287417953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:32,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:32,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:32,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645630410] [2022-01-18 09:30:32,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:32,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:32,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:32,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:32,156 INFO L87 Difference]: Start difference. First operand 5832 states and 15802 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:33,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:33,848 INFO L93 Difference]: Finished difference Result 17788 states and 47150 transitions. [2022-01-18 09:30:33,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:30:33,848 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:33,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:33,875 INFO L225 Difference]: With dead ends: 17788 [2022-01-18 09:30:33,876 INFO L226 Difference]: Without dead ends: 17788 [2022-01-18 09:30:33,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:30:33,876 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1193 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:33,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 3180 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2022-01-18 09:30:34,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 5784. [2022-01-18 09:30:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5782 states have (on average 2.7085783465928746) internal successors, (15661), 5783 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 15661 transitions. [2022-01-18 09:30:34,020 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 15661 transitions. Word has length 130 [2022-01-18 09:30:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:34,020 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 15661 transitions. [2022-01-18 09:30:34,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:34,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 15661 transitions. [2022-01-18 09:30:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:34,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:34,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:34,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-01-18 09:30:34,027 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:34,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1033348120, now seen corresponding path program 332 times [2022-01-18 09:30:34,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:34,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798303384] [2022-01-18 09:30:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:34,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:34,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:34,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798303384] [2022-01-18 09:30:34,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798303384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:34,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:34,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:34,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823433699] [2022-01-18 09:30:34,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:34,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:34,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:34,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:34,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:34,336 INFO L87 Difference]: Start difference. First operand 5784 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:35,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:35,439 INFO L93 Difference]: Finished difference Result 16485 states and 43895 transitions. [2022-01-18 09:30:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:35,461 INFO L225 Difference]: With dead ends: 16485 [2022-01-18 09:30:35,462 INFO L226 Difference]: Without dead ends: 16485 [2022-01-18 09:30:35,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:35,462 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 1162 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:35,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 2894 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16485 states. [2022-01-18 09:30:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16485 to 5816. [2022-01-18 09:30:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-18 09:30:35,578 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-18 09:30:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:35,578 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-18 09:30:35,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-18 09:30:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:35,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:35,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:35,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-01-18 09:30:35,584 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:35,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:35,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1637669668, now seen corresponding path program 333 times [2022-01-18 09:30:35,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:35,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423024911] [2022-01-18 09:30:35,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:35,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:35,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423024911] [2022-01-18 09:30:35,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423024911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:35,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:35,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:35,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350445860] [2022-01-18 09:30:35,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:35,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:35,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:35,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:35,950 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:37,659 INFO L93 Difference]: Finished difference Result 17293 states and 45758 transitions. [2022-01-18 09:30:37,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 09:30:37,659 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:37,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:37,682 INFO L225 Difference]: With dead ends: 17293 [2022-01-18 09:30:37,682 INFO L226 Difference]: Without dead ends: 17293 [2022-01-18 09:30:37,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=452, Invalid=1108, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 09:30:37,683 INFO L933 BasicCegarLoop]: 460 mSDtfsCounter, 1190 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:37,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 3239 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17293 states. [2022-01-18 09:30:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17293 to 5800. [2022-01-18 09:30:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5798 states have (on average 2.709210072438772) internal successors, (15708), 5799 states have internal predecessors, (15708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 15708 transitions. [2022-01-18 09:30:37,803 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 15708 transitions. Word has length 130 [2022-01-18 09:30:37,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:37,803 INFO L470 AbstractCegarLoop]: Abstraction has 5800 states and 15708 transitions. [2022-01-18 09:30:37,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:37,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 15708 transitions. [2022-01-18 09:30:37,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:37,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:37,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:37,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-01-18 09:30:37,809 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:37,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:37,809 INFO L85 PathProgramCache]: Analyzing trace with hash 220581888, now seen corresponding path program 334 times [2022-01-18 09:30:37,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:37,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677680600] [2022-01-18 09:30:37,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:37,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:38,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:38,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677680600] [2022-01-18 09:30:38,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677680600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:38,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:38,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:30:38,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624734956] [2022-01-18 09:30:38,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:38,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:30:38,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:38,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:30:38,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:30:38,189 INFO L87 Difference]: Start difference. First operand 5800 states and 15708 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:39,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:39,610 INFO L93 Difference]: Finished difference Result 16638 states and 44145 transitions. [2022-01-18 09:30:39,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:39,611 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:39,635 INFO L225 Difference]: With dead ends: 16638 [2022-01-18 09:30:39,635 INFO L226 Difference]: Without dead ends: 16638 [2022-01-18 09:30:39,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:30:39,636 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 1282 mSDsluCounter, 3976 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 4359 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:39,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1282 Valid, 4359 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2022-01-18 09:30:39,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 5816. [2022-01-18 09:30:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.7098383212934296) internal successors, (15755), 5815 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:39,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15755 transitions. [2022-01-18 09:30:39,768 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15755 transitions. Word has length 130 [2022-01-18 09:30:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:39,768 INFO L470 AbstractCegarLoop]: Abstraction has 5816 states and 15755 transitions. [2022-01-18 09:30:39,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15755 transitions. [2022-01-18 09:30:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:39,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:39,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:39,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-01-18 09:30:39,775 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1919221062, now seen corresponding path program 335 times [2022-01-18 09:30:39,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:39,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174726791] [2022-01-18 09:30:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:39,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:40,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:40,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174726791] [2022-01-18 09:30:40,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174726791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:40,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:40,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:40,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955185597] [2022-01-18 09:30:40,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:40,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:40,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:40,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:40,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:40,080 INFO L87 Difference]: Start difference. First operand 5816 states and 15755 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:41,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:41,190 INFO L93 Difference]: Finished difference Result 13909 states and 37023 transitions. [2022-01-18 09:30:41,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:41,191 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:41,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:41,209 INFO L225 Difference]: With dead ends: 13909 [2022-01-18 09:30:41,209 INFO L226 Difference]: Without dead ends: 13909 [2022-01-18 09:30:41,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:41,209 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1160 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:41,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 2824 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13909 states. [2022-01-18 09:30:41,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13909 to 5736. [2022-01-18 09:30:41,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5734 states have (on average 2.706662016044646) internal successors, (15520), 5735 states have internal predecessors, (15520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15520 transitions. [2022-01-18 09:30:41,309 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15520 transitions. Word has length 130 [2022-01-18 09:30:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:41,309 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 15520 transitions. [2022-01-18 09:30:41,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15520 transitions. [2022-01-18 09:30:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:41,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:41,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:41,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-01-18 09:30:41,314 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:41,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:41,315 INFO L85 PathProgramCache]: Analyzing trace with hash -828837720, now seen corresponding path program 336 times [2022-01-18 09:30:41,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:41,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010511998] [2022-01-18 09:30:41,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:41,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:41,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:41,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010511998] [2022-01-18 09:30:41,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010511998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:41,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:41,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:30:41,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683481076] [2022-01-18 09:30:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:41,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:30:41,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:30:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:30:41,711 INFO L87 Difference]: Start difference. First operand 5736 states and 15520 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:43,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:43,178 INFO L93 Difference]: Finished difference Result 13799 states and 36818 transitions. [2022-01-18 09:30:43,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:43,178 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:43,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:43,199 INFO L225 Difference]: With dead ends: 13799 [2022-01-18 09:30:43,199 INFO L226 Difference]: Without dead ends: 13799 [2022-01-18 09:30:43,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=395, Invalid=1327, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:30:43,200 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1145 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:43,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 4438 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13799 states. [2022-01-18 09:30:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13799 to 5744. [2022-01-18 09:30:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.7075931731104146) internal successors, (15547), 5743 states have internal predecessors, (15547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15547 transitions. [2022-01-18 09:30:43,316 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15547 transitions. Word has length 130 [2022-01-18 09:30:43,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:43,316 INFO L470 AbstractCegarLoop]: Abstraction has 5744 states and 15547 transitions. [2022-01-18 09:30:43,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15547 transitions. [2022-01-18 09:30:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:43,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:43,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:43,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-01-18 09:30:43,322 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:43,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1104302444, now seen corresponding path program 337 times [2022-01-18 09:30:43,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:43,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834164802] [2022-01-18 09:30:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:43,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:43,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:43,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834164802] [2022-01-18 09:30:43,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834164802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:43,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:43,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:43,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125280464] [2022-01-18 09:30:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:43,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:43,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:43,650 INFO L87 Difference]: Start difference. First operand 5744 states and 15547 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:44,806 INFO L93 Difference]: Finished difference Result 13487 states and 35912 transitions. [2022-01-18 09:30:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:44,806 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:44,825 INFO L225 Difference]: With dead ends: 13487 [2022-01-18 09:30:44,825 INFO L226 Difference]: Without dead ends: 13487 [2022-01-18 09:30:44,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:44,825 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1095 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:44,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 3113 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:44,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13487 states. [2022-01-18 09:30:44,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13487 to 5760. [2022-01-18 09:30:44,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 5758 states have (on average 2.709447724904481) internal successors, (15601), 5759 states have internal predecessors, (15601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 15601 transitions. [2022-01-18 09:30:44,934 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 15601 transitions. Word has length 130 [2022-01-18 09:30:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:44,935 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 15601 transitions. [2022-01-18 09:30:44,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 15601 transitions. [2022-01-18 09:30:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:44,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:44,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:44,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-01-18 09:30:44,941 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:44,941 INFO L85 PathProgramCache]: Analyzing trace with hash 89764204, now seen corresponding path program 338 times [2022-01-18 09:30:44,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:44,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024450210] [2022-01-18 09:30:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:44,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:45,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:45,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024450210] [2022-01-18 09:30:45,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024450210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:45,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:45,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:30:45,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596452170] [2022-01-18 09:30:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:45,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:30:45,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:30:45,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:30:45,261 INFO L87 Difference]: Start difference. First operand 5760 states and 15601 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:46,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:46,390 INFO L93 Difference]: Finished difference Result 13175 states and 35006 transitions. [2022-01-18 09:30:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:30:46,391 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:46,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:46,408 INFO L225 Difference]: With dead ends: 13175 [2022-01-18 09:30:46,408 INFO L226 Difference]: Without dead ends: 13175 [2022-01-18 09:30:46,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:46,409 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1215 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:46,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 2705 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:30:46,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13175 states. [2022-01-18 09:30:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13175 to 5768. [2022-01-18 09:30:46,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.71037114117239) internal successors, (15628), 5767 states have internal predecessors, (15628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15628 transitions. [2022-01-18 09:30:46,504 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15628 transitions. Word has length 130 [2022-01-18 09:30:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:46,505 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 15628 transitions. [2022-01-18 09:30:46,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15628 transitions. [2022-01-18 09:30:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:46,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:46,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:46,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-01-18 09:30:46,510 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:46,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1534185304, now seen corresponding path program 339 times [2022-01-18 09:30:46,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:46,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551278317] [2022-01-18 09:30:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:46,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:46,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:46,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551278317] [2022-01-18 09:30:46,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551278317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:46,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:46,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:30:46,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179776357] [2022-01-18 09:30:46,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:46,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:30:46,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:46,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:30:46,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:30:46,854 INFO L87 Difference]: Start difference. First operand 5768 states and 15628 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:48,363 INFO L93 Difference]: Finished difference Result 11302 states and 29805 transitions. [2022-01-18 09:30:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:30:48,363 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:48,378 INFO L225 Difference]: With dead ends: 11302 [2022-01-18 09:30:48,378 INFO L226 Difference]: Without dead ends: 11302 [2022-01-18 09:30:48,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:30:48,379 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1190 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:48,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 2928 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-01-18 09:30:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5578. [2022-01-18 09:30:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5576 states have (on average 2.707496413199426) internal successors, (15097), 5577 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:48,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 15097 transitions. [2022-01-18 09:30:48,466 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 15097 transitions. Word has length 130 [2022-01-18 09:30:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:48,467 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 15097 transitions. [2022-01-18 09:30:48,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 15097 transitions. [2022-01-18 09:30:48,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:48,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:48,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:48,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-01-18 09:30:48,472 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:48,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:48,472 INFO L85 PathProgramCache]: Analyzing trace with hash 666143600, now seen corresponding path program 340 times [2022-01-18 09:30:48,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:48,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354480846] [2022-01-18 09:30:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:48,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:48,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:48,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354480846] [2022-01-18 09:30:48,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354480846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:48,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:48,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:30:48,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197995272] [2022-01-18 09:30:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:48,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:30:48,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:48,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:30:48,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:30:48,884 INFO L87 Difference]: Start difference. First operand 5578 states and 15097 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:50,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:50,208 INFO L93 Difference]: Finished difference Result 6442 states and 17443 transitions. [2022-01-18 09:30:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:50,209 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:50,218 INFO L225 Difference]: With dead ends: 6442 [2022-01-18 09:30:50,218 INFO L226 Difference]: Without dead ends: 6442 [2022-01-18 09:30:50,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=398, Invalid=1324, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:30:50,218 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 990 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 3758 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:50,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 3758 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2022-01-18 09:30:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5578. [2022-01-18 09:30:50,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5576 states have (on average 2.707496413199426) internal successors, (15097), 5577 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:50,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 15097 transitions. [2022-01-18 09:30:50,293 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 15097 transitions. Word has length 130 [2022-01-18 09:30:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:50,293 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 15097 transitions. [2022-01-18 09:30:50,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 15097 transitions. [2022-01-18 09:30:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:50,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:50,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:50,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-01-18 09:30:50,299 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:50,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash -818818260, now seen corresponding path program 341 times [2022-01-18 09:30:50,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:50,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454053688] [2022-01-18 09:30:50,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:50,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:50,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:50,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454053688] [2022-01-18 09:30:50,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454053688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:50,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:50,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:30:50,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175294352] [2022-01-18 09:30:50,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:50,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:30:50,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:30:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:30:50,757 INFO L87 Difference]: Start difference. First operand 5578 states and 15097 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:52,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:52,141 INFO L93 Difference]: Finished difference Result 10188 states and 27545 transitions. [2022-01-18 09:30:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:30:52,141 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:52,154 INFO L225 Difference]: With dead ends: 10188 [2022-01-18 09:30:52,154 INFO L226 Difference]: Without dead ends: 10188 [2022-01-18 09:30:52,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:30:52,155 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 914 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:52,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [914 Valid, 4084 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:52,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10188 states. [2022-01-18 09:30:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10188 to 5594. [2022-01-18 09:30:52,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5594 states, 5592 states have (on average 2.708154506437768) internal successors, (15144), 5593 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5594 states to 5594 states and 15144 transitions. [2022-01-18 09:30:52,236 INFO L78 Accepts]: Start accepts. Automaton has 5594 states and 15144 transitions. Word has length 130 [2022-01-18 09:30:52,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:52,237 INFO L470 AbstractCegarLoop]: Abstraction has 5594 states and 15144 transitions. [2022-01-18 09:30:52,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5594 states and 15144 transitions. [2022-01-18 09:30:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:52,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:52,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:52,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-01-18 09:30:52,242 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:52,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1264559248, now seen corresponding path program 342 times [2022-01-18 09:30:52,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:52,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252702493] [2022-01-18 09:30:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:52,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:52,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:52,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252702493] [2022-01-18 09:30:52,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252702493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:52,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:52,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:30:52,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26345208] [2022-01-18 09:30:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:52,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:30:52,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:52,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:30:52,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:30:52,797 INFO L87 Difference]: Start difference. First operand 5594 states and 15144 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:55,605 INFO L93 Difference]: Finished difference Result 10177 states and 27002 transitions. [2022-01-18 09:30:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:30:55,605 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:55,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:55,618 INFO L225 Difference]: With dead ends: 10177 [2022-01-18 09:30:55,618 INFO L226 Difference]: Without dead ends: 10177 [2022-01-18 09:30:55,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=580, Invalid=1582, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:30:55,619 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1393 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:55,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 3860 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2022-01-18 09:30:55,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 5934. [2022-01-18 09:30:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5934 states, 5932 states have (on average 2.7198246797033043) internal successors, (16134), 5933 states have internal predecessors, (16134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5934 states to 5934 states and 16134 transitions. [2022-01-18 09:30:55,706 INFO L78 Accepts]: Start accepts. Automaton has 5934 states and 16134 transitions. Word has length 130 [2022-01-18 09:30:55,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:55,706 INFO L470 AbstractCegarLoop]: Abstraction has 5934 states and 16134 transitions. [2022-01-18 09:30:55,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:55,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5934 states and 16134 transitions. [2022-01-18 09:30:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:55,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:55,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:55,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-01-18 09:30:55,712 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1610638736, now seen corresponding path program 343 times [2022-01-18 09:30:55,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:55,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395989151] [2022-01-18 09:30:55,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:55,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:56,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:56,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395989151] [2022-01-18 09:30:56,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395989151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:56,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:56,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:30:56,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965929840] [2022-01-18 09:30:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:56,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:30:56,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:30:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:30:56,292 INFO L87 Difference]: Start difference. First operand 5934 states and 16134 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:59,112 INFO L93 Difference]: Finished difference Result 9806 states and 26239 transitions. [2022-01-18 09:30:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 09:30:59,112 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:30:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:59,125 INFO L225 Difference]: With dead ends: 9806 [2022-01-18 09:30:59,125 INFO L226 Difference]: Without dead ends: 9806 [2022-01-18 09:30:59,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=563, Invalid=1507, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 09:30:59,126 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1176 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:59,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 4168 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:30:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9806 states. [2022-01-18 09:30:59,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9806 to 6284. [2022-01-18 09:30:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6284 states, 6282 states have (on average 2.7354345749761224) internal successors, (17184), 6283 states have internal predecessors, (17184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 17184 transitions. [2022-01-18 09:30:59,217 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 17184 transitions. Word has length 130 [2022-01-18 09:30:59,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:59,217 INFO L470 AbstractCegarLoop]: Abstraction has 6284 states and 17184 transitions. [2022-01-18 09:30:59,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:59,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 17184 transitions. [2022-01-18 09:30:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:30:59,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:59,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:59,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-01-18 09:30:59,225 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:59,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1055504190, now seen corresponding path program 344 times [2022-01-18 09:30:59,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:59,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763905564] [2022-01-18 09:30:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:59,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:59,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:59,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763905564] [2022-01-18 09:30:59,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763905564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:59,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:59,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:30:59,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293177625] [2022-01-18 09:30:59,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:59,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:30:59,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:59,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:30:59,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:30:59,601 INFO L87 Difference]: Start difference. First operand 6284 states and 17184 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:00,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:00,964 INFO L93 Difference]: Finished difference Result 9442 states and 25469 transitions. [2022-01-18 09:31:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:31:00,965 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:00,978 INFO L225 Difference]: With dead ends: 9442 [2022-01-18 09:31:00,978 INFO L226 Difference]: Without dead ends: 9442 [2022-01-18 09:31:00,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=962, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:31:00,978 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1113 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:00,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 2801 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2022-01-18 09:31:01,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 6230. [2022-01-18 09:31:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6230 states, 6228 states have (on average 2.732980089916506) internal successors, (17021), 6229 states have internal predecessors, (17021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6230 states to 6230 states and 17021 transitions. [2022-01-18 09:31:01,086 INFO L78 Accepts]: Start accepts. Automaton has 6230 states and 17021 transitions. Word has length 130 [2022-01-18 09:31:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:01,086 INFO L470 AbstractCegarLoop]: Abstraction has 6230 states and 17021 transitions. [2022-01-18 09:31:01,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6230 states and 17021 transitions. [2022-01-18 09:31:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:01,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:01,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:01,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-01-18 09:31:01,094 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:01,094 INFO L85 PathProgramCache]: Analyzing trace with hash -202080450, now seen corresponding path program 345 times [2022-01-18 09:31:01,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:01,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313649424] [2022-01-18 09:31:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:01,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:01,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:01,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313649424] [2022-01-18 09:31:01,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313649424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:01,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:01,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 09:31:01,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343435654] [2022-01-18 09:31:01,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:01,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 09:31:01,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:01,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 09:31:01,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-01-18 09:31:01,705 INFO L87 Difference]: Start difference. First operand 6230 states and 17021 transitions. Second operand has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:04,849 INFO L93 Difference]: Finished difference Result 9423 states and 25013 transitions. [2022-01-18 09:31:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:31:04,849 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:04,863 INFO L225 Difference]: With dead ends: 9423 [2022-01-18 09:31:04,863 INFO L226 Difference]: Without dead ends: 9423 [2022-01-18 09:31:04,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=654, Invalid=2102, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:31:04,863 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1164 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:04,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 4214 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9423 states. [2022-01-18 09:31:04,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9423 to 6250. [2022-01-18 09:31:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 6248 states have (on average 2.732234314980794) internal successors, (17071), 6249 states have internal predecessors, (17071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 17071 transitions. [2022-01-18 09:31:04,962 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 17071 transitions. Word has length 130 [2022-01-18 09:31:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:04,962 INFO L470 AbstractCegarLoop]: Abstraction has 6250 states and 17071 transitions. [2022-01-18 09:31:04,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 17071 transitions. [2022-01-18 09:31:04,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:04,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:04,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:04,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-01-18 09:31:04,970 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:04,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:04,970 INFO L85 PathProgramCache]: Analyzing trace with hash 805729150, now seen corresponding path program 346 times [2022-01-18 09:31:04,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:04,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325230504] [2022-01-18 09:31:04,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:04,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:05,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:05,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325230504] [2022-01-18 09:31:05,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325230504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:05,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:05,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:31:05,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169187383] [2022-01-18 09:31:05,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:05,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:31:05,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:31:05,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:31:05,381 INFO L87 Difference]: Start difference. First operand 6250 states and 17071 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:06,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:06,802 INFO L93 Difference]: Finished difference Result 9174 states and 24673 transitions. [2022-01-18 09:31:06,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:31:06,803 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:06,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:06,815 INFO L225 Difference]: With dead ends: 9174 [2022-01-18 09:31:06,815 INFO L226 Difference]: Without dead ends: 9174 [2022-01-18 09:31:06,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=397, Invalid=1325, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:31:06,816 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 981 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:06,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [981 Valid, 4133 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2022-01-18 09:31:06,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 6126. [2022-01-18 09:31:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6126 states, 6124 states have (on average 2.727792292619203) internal successors, (16705), 6125 states have internal predecessors, (16705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6126 states to 6126 states and 16705 transitions. [2022-01-18 09:31:06,907 INFO L78 Accepts]: Start accepts. Automaton has 6126 states and 16705 transitions. Word has length 130 [2022-01-18 09:31:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:06,907 INFO L470 AbstractCegarLoop]: Abstraction has 6126 states and 16705 transitions. [2022-01-18 09:31:06,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:06,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6126 states and 16705 transitions. [2022-01-18 09:31:06,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:06,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:06,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:06,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-01-18 09:31:06,914 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -208809090, now seen corresponding path program 347 times [2022-01-18 09:31:06,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:06,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958348527] [2022-01-18 09:31:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:06,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:07,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:07,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958348527] [2022-01-18 09:31:07,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958348527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:07,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:07,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:31:07,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76342561] [2022-01-18 09:31:07,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:07,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:31:07,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:31:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:31:07,289 INFO L87 Difference]: Start difference. First operand 6126 states and 16705 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:08,618 INFO L93 Difference]: Finished difference Result 8862 states and 23767 transitions. [2022-01-18 09:31:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:31:08,618 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:08,630 INFO L225 Difference]: With dead ends: 8862 [2022-01-18 09:31:08,630 INFO L226 Difference]: Without dead ends: 8862 [2022-01-18 09:31:08,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=364, Invalid=896, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:31:08,631 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1177 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2432 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:08,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 2432 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8862 states. [2022-01-18 09:31:08,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 6064. [2022-01-18 09:31:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6064 states, 6062 states have (on average 2.7255031342791156) internal successors, (16522), 6063 states have internal predecessors, (16522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6064 states to 6064 states and 16522 transitions. [2022-01-18 09:31:08,720 INFO L78 Accepts]: Start accepts. Automaton has 6064 states and 16522 transitions. Word has length 130 [2022-01-18 09:31:08,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:08,720 INFO L470 AbstractCegarLoop]: Abstraction has 6064 states and 16522 transitions. [2022-01-18 09:31:08,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:08,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6064 states and 16522 transitions. [2022-01-18 09:31:08,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:08,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:08,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:08,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-01-18 09:31:08,727 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:08,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1832758598, now seen corresponding path program 348 times [2022-01-18 09:31:08,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:08,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649731487] [2022-01-18 09:31:08,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:08,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:09,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:09,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649731487] [2022-01-18 09:31:09,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649731487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:09,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:09,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:31:09,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598923974] [2022-01-18 09:31:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:09,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:31:09,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:31:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:31:09,077 INFO L87 Difference]: Start difference. First operand 6064 states and 16522 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:10,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:10,411 INFO L93 Difference]: Finished difference Result 7619 states and 20260 transitions. [2022-01-18 09:31:10,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:31:10,411 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:10,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:10,421 INFO L225 Difference]: With dead ends: 7619 [2022-01-18 09:31:10,421 INFO L226 Difference]: Without dead ends: 7619 [2022-01-18 09:31:10,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=364, Invalid=896, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:31:10,422 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1191 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:10,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 2446 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:10,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2022-01-18 09:31:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 5578. [2022-01-18 09:31:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5576 states have (on average 2.707496413199426) internal successors, (15097), 5577 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 15097 transitions. [2022-01-18 09:31:10,493 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 15097 transitions. Word has length 130 [2022-01-18 09:31:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:10,494 INFO L470 AbstractCegarLoop]: Abstraction has 5578 states and 15097 transitions. [2022-01-18 09:31:10,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 15097 transitions. [2022-01-18 09:31:10,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:10,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:10,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:10,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-01-18 09:31:10,500 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:10,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1252197566, now seen corresponding path program 349 times [2022-01-18 09:31:10,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:10,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878254313] [2022-01-18 09:31:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:10,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:10,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:10,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878254313] [2022-01-18 09:31:10,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878254313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:10,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:10,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:31:10,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335580077] [2022-01-18 09:31:10,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:31:10,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:31:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:31:10,837 INFO L87 Difference]: Start difference. First operand 5578 states and 15097 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:11,968 INFO L93 Difference]: Finished difference Result 9468 states and 25088 transitions. [2022-01-18 09:31:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:31:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:11,981 INFO L225 Difference]: With dead ends: 9468 [2022-01-18 09:31:11,981 INFO L226 Difference]: Without dead ends: 9468 [2022-01-18 09:31:11,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:31:11,982 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1010 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:11,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2993 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:11,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9468 states. [2022-01-18 09:31:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9468 to 5482. [2022-01-18 09:31:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5482 states, 5480 states have (on average 2.7034671532846715) internal successors, (14815), 5481 states have internal predecessors, (14815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:12,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5482 states to 5482 states and 14815 transitions. [2022-01-18 09:31:12,064 INFO L78 Accepts]: Start accepts. Automaton has 5482 states and 14815 transitions. Word has length 130 [2022-01-18 09:31:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:12,064 INFO L470 AbstractCegarLoop]: Abstraction has 5482 states and 14815 transitions. [2022-01-18 09:31:12,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:12,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5482 states and 14815 transitions. [2022-01-18 09:31:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:12,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:12,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:12,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-01-18 09:31:12,070 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:12,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1697938554, now seen corresponding path program 350 times [2022-01-18 09:31:12,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:12,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896464567] [2022-01-18 09:31:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:12,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:12,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:12,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896464567] [2022-01-18 09:31:12,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896464567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:12,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:12,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:31:12,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903552509] [2022-01-18 09:31:12,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:12,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:31:12,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:12,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:31:12,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:31:12,460 INFO L87 Difference]: Start difference. First operand 5482 states and 14815 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:14,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:14,015 INFO L93 Difference]: Finished difference Result 12953 states and 34444 transitions. [2022-01-18 09:31:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:31:14,015 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:14,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:14,033 INFO L225 Difference]: With dead ends: 12953 [2022-01-18 09:31:14,033 INFO L226 Difference]: Without dead ends: 12953 [2022-01-18 09:31:14,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=411, Invalid=1071, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:31:14,034 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1143 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:14,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 3388 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:31:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12953 states. [2022-01-18 09:31:14,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12953 to 5498. [2022-01-18 09:31:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 5496 states have (on average 2.7041484716157207) internal successors, (14862), 5497 states have internal predecessors, (14862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 14862 transitions. [2022-01-18 09:31:14,138 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 14862 transitions. Word has length 130 [2022-01-18 09:31:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:14,138 INFO L470 AbstractCegarLoop]: Abstraction has 5498 states and 14862 transitions. [2022-01-18 09:31:14,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 14862 transitions. [2022-01-18 09:31:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:14,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:14,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:14,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-01-18 09:31:14,144 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:14,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:14,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1339444102, now seen corresponding path program 351 times [2022-01-18 09:31:14,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:14,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656057524] [2022-01-18 09:31:14,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:14,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:14,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:14,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:14,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656057524] [2022-01-18 09:31:14,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656057524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:14,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:14,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:31:14,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196415391] [2022-01-18 09:31:14,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:14,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:31:14,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:14,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:31:14,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:31:14,898 INFO L87 Difference]: Start difference. First operand 5498 states and 14862 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:18,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:18,721 INFO L93 Difference]: Finished difference Result 13002 states and 34149 transitions. [2022-01-18 09:31:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:31:18,721 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:18,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:18,738 INFO L225 Difference]: With dead ends: 13002 [2022-01-18 09:31:18,738 INFO L226 Difference]: Without dead ends: 13002 [2022-01-18 09:31:18,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=804, Invalid=2856, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 09:31:18,739 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1664 mSDsluCounter, 5270 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 5523 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:18,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1664 Valid, 5523 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:31:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13002 states. [2022-01-18 09:31:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13002 to 5768. [2022-01-18 09:31:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 2.712799167533819) internal successors, (15642), 5767 states have internal predecessors, (15642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 15642 transitions. [2022-01-18 09:31:18,841 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 15642 transitions. Word has length 130 [2022-01-18 09:31:18,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:18,841 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 15642 transitions. [2022-01-18 09:31:18,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 30 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:18,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 15642 transitions. [2022-01-18 09:31:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:18,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:18,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:18,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-01-18 09:31:18,847 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash 993364614, now seen corresponding path program 352 times [2022-01-18 09:31:18,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:18,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54654288] [2022-01-18 09:31:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:18,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:19,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:19,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:19,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54654288] [2022-01-18 09:31:19,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54654288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:19,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:19,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:31:19,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521042373] [2022-01-18 09:31:19,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:19,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:31:19,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:19,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:31:19,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:31:19,173 INFO L87 Difference]: Start difference. First operand 5768 states and 15642 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:20,313 INFO L93 Difference]: Finished difference Result 12741 states and 33780 transitions. [2022-01-18 09:31:20,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:31:20,313 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:20,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:20,333 INFO L225 Difference]: With dead ends: 12741 [2022-01-18 09:31:20,333 INFO L226 Difference]: Without dead ends: 12741 [2022-01-18 09:31:20,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:31:20,333 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1101 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:20,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 3111 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2022-01-18 09:31:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 5660. [2022-01-18 09:31:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5658 states have (on average 2.706963591375044) internal successors, (15316), 5659 states have internal predecessors, (15316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 15316 transitions. [2022-01-18 09:31:20,449 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 15316 transitions. Word has length 130 [2022-01-18 09:31:20,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:20,449 INFO L470 AbstractCegarLoop]: Abstraction has 5660 states and 15316 transitions. [2022-01-18 09:31:20,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 15316 transitions. [2022-01-18 09:31:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:20,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:20,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:20,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-01-18 09:31:20,455 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:20,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:20,456 INFO L85 PathProgramCache]: Analyzing trace with hash 246213254, now seen corresponding path program 353 times [2022-01-18 09:31:20,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:20,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222096473] [2022-01-18 09:31:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:20,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:20,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:20,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222096473] [2022-01-18 09:31:20,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222096473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:20,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:20,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:31:20,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699983201] [2022-01-18 09:31:20,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:20,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:31:20,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:20,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:31:20,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:31:20,830 INFO L87 Difference]: Start difference. First operand 5660 states and 15316 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:22,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:22,332 INFO L93 Difference]: Finished difference Result 12445 states and 32914 transitions. [2022-01-18 09:31:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:31:22,332 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:22,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:22,350 INFO L225 Difference]: With dead ends: 12445 [2022-01-18 09:31:22,350 INFO L226 Difference]: Without dead ends: 12445 [2022-01-18 09:31:22,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=410, Invalid=1072, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:31:22,351 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1221 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:22,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 2752 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:22,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12445 states. [2022-01-18 09:31:22,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12445 to 5598. [2022-01-18 09:31:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 5596 states have (on average 2.704253037884203) internal successors, (15133), 5597 states have internal predecessors, (15133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 15133 transitions. [2022-01-18 09:31:22,453 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 15133 transitions. Word has length 130 [2022-01-18 09:31:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:22,453 INFO L470 AbstractCegarLoop]: Abstraction has 5598 states and 15133 transitions. [2022-01-18 09:31:22,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 15133 transitions. [2022-01-18 09:31:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:22,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:22,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:22,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-01-18 09:31:22,459 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:22,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:22,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1209222210, now seen corresponding path program 354 times [2022-01-18 09:31:22,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:22,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214790864] [2022-01-18 09:31:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:22,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:22,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:22,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214790864] [2022-01-18 09:31:22,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214790864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:22,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:22,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:31:22,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755142980] [2022-01-18 09:31:22,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:22,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:31:22,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:22,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:31:22,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:31:22,847 INFO L87 Difference]: Start difference. First operand 5598 states and 15133 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:24,373 INFO L93 Difference]: Finished difference Result 10572 states and 27713 transitions. [2022-01-18 09:31:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:31:24,373 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:24,387 INFO L225 Difference]: With dead ends: 10572 [2022-01-18 09:31:24,387 INFO L226 Difference]: Without dead ends: 10572 [2022-01-18 09:31:24,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=411, Invalid=1071, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:31:24,387 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1199 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:24,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 3020 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:31:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10572 states. [2022-01-18 09:31:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10572 to 5466. [2022-01-18 09:31:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5464 states have (on average 2.7027818448023426) internal successors, (14768), 5465 states have internal predecessors, (14768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14768 transitions. [2022-01-18 09:31:24,474 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14768 transitions. Word has length 130 [2022-01-18 09:31:24,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:24,475 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14768 transitions. [2022-01-18 09:31:24,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14768 transitions. [2022-01-18 09:31:24,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:24,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:24,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:24,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-01-18 09:31:24,480 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:24,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1382464876, now seen corresponding path program 355 times [2022-01-18 09:31:24,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:24,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560239583] [2022-01-18 09:31:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:24,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:25,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:25,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560239583] [2022-01-18 09:31:25,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560239583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:25,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:25,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:31:25,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318145189] [2022-01-18 09:31:25,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:25,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:31:25,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:25,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:31:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:31:25,039 INFO L87 Difference]: Start difference. First operand 5466 states and 14768 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:27,879 INFO L93 Difference]: Finished difference Result 12252 states and 32123 transitions. [2022-01-18 09:31:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 09:31:27,879 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:27,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:27,895 INFO L225 Difference]: With dead ends: 12252 [2022-01-18 09:31:27,895 INFO L226 Difference]: Without dead ends: 12252 [2022-01-18 09:31:27,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=579, Invalid=1583, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 09:31:27,895 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1482 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:27,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 3868 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12252 states. [2022-01-18 09:31:27,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12252 to 5736. [2022-01-18 09:31:27,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5734 states have (on average 2.711545169166376) internal successors, (15548), 5735 states have internal predecessors, (15548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15548 transitions. [2022-01-18 09:31:27,994 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15548 transitions. Word has length 130 [2022-01-18 09:31:27,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:27,994 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 15548 transitions. [2022-01-18 09:31:27,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:27,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15548 transitions. [2022-01-18 09:31:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:28,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:28,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:28,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-01-18 09:31:28,000 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1036385388, now seen corresponding path program 356 times [2022-01-18 09:31:28,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647164659] [2022-01-18 09:31:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:28,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:28,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:28,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:28,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647164659] [2022-01-18 09:31:28,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647164659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:28,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:28,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:31:28,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306910680] [2022-01-18 09:31:28,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:28,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:31:28,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:31:28,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:31:28,434 INFO L87 Difference]: Start difference. First operand 5736 states and 15548 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:29,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:29,863 INFO L93 Difference]: Finished difference Result 9493 states and 25154 transitions. [2022-01-18 09:31:29,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:31:29,864 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:29,877 INFO L225 Difference]: With dead ends: 9493 [2022-01-18 09:31:29,877 INFO L226 Difference]: Without dead ends: 9493 [2022-01-18 09:31:29,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=1326, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:31:29,877 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 933 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:29,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 4453 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9493 states. [2022-01-18 09:31:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9493 to 5640. [2022-01-18 09:31:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5640 states, 5638 states have (on average 2.7076977651649523) internal successors, (15266), 5639 states have internal predecessors, (15266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 15266 transitions. [2022-01-18 09:31:29,969 INFO L78 Accepts]: Start accepts. Automaton has 5640 states and 15266 transitions. Word has length 130 [2022-01-18 09:31:29,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:29,969 INFO L470 AbstractCegarLoop]: Abstraction has 5640 states and 15266 transitions. [2022-01-18 09:31:29,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:29,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5640 states and 15266 transitions. [2022-01-18 09:31:29,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:29,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:29,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:29,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-01-18 09:31:29,975 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:29,975 INFO L85 PathProgramCache]: Analyzing trace with hash -221199252, now seen corresponding path program 357 times [2022-01-18 09:31:29,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661241758] [2022-01-18 09:31:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:29,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:30,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:30,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661241758] [2022-01-18 09:31:30,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661241758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:30,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:30,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-18 09:31:30,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322764878] [2022-01-18 09:31:30,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:30,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 09:31:30,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:30,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 09:31:30,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:31:30,544 INFO L87 Difference]: Start difference. First operand 5640 states and 15266 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:33,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:33,413 INFO L93 Difference]: Finished difference Result 12301 states and 32458 transitions. [2022-01-18 09:31:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 09:31:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:33,431 INFO L225 Difference]: With dead ends: 12301 [2022-01-18 09:31:33,431 INFO L226 Difference]: Without dead ends: 12301 [2022-01-18 09:31:33,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 09:31:33,432 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1212 mSDsluCounter, 3743 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:33,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 4070 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:33,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12301 states. [2022-01-18 09:31:33,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12301 to 5990. [2022-01-18 09:31:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.7247828991315965) internal successors, (16316), 5989 states have internal predecessors, (16316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16316 transitions. [2022-01-18 09:31:33,542 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16316 transitions. Word has length 130 [2022-01-18 09:31:33,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:33,542 INFO L470 AbstractCegarLoop]: Abstraction has 5990 states and 16316 transitions. [2022-01-18 09:31:33,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:33,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16316 transitions. [2022-01-18 09:31:33,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:33,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:33,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:33,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-01-18 09:31:33,548 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:33,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1850023622, now seen corresponding path program 358 times [2022-01-18 09:31:33,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:33,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834448532] [2022-01-18 09:31:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:33,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:33,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:33,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834448532] [2022-01-18 09:31:33,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834448532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:33,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:33,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:31:33,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941177900] [2022-01-18 09:31:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:33,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:31:33,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:33,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:31:33,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:31:33,905 INFO L87 Difference]: Start difference. First operand 5990 states and 16316 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:35,427 INFO L93 Difference]: Finished difference Result 11781 states and 31158 transitions. [2022-01-18 09:31:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:31:35,427 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:35,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:35,443 INFO L225 Difference]: With dead ends: 11781 [2022-01-18 09:31:35,443 INFO L226 Difference]: Without dead ends: 11781 [2022-01-18 09:31:35,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 09:31:35,443 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1086 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:35,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 2811 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:31:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11781 states. [2022-01-18 09:31:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11781 to 5882. [2022-01-18 09:31:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 5880 states have (on average 2.7193877551020407) internal successors, (15990), 5881 states have internal predecessors, (15990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:35,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 15990 transitions. [2022-01-18 09:31:35,548 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 15990 transitions. Word has length 130 [2022-01-18 09:31:35,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:35,548 INFO L470 AbstractCegarLoop]: Abstraction has 5882 states and 15990 transitions. [2022-01-18 09:31:35,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 15990 transitions. [2022-01-18 09:31:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:35,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:35,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:35,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-01-18 09:31:35,555 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:35,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:35,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1034543290, now seen corresponding path program 359 times [2022-01-18 09:31:35,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:35,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339930538] [2022-01-18 09:31:35,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:35,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:35,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:35,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339930538] [2022-01-18 09:31:35,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339930538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:35,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:35,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:31:35,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390122131] [2022-01-18 09:31:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:35,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:31:35,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:31:35,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:31:35,873 INFO L87 Difference]: Start difference. First operand 5882 states and 15990 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:36,973 INFO L93 Difference]: Finished difference Result 11485 states and 30292 transitions. [2022-01-18 09:31:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:31:36,973 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:36,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:36,988 INFO L225 Difference]: With dead ends: 11485 [2022-01-18 09:31:36,988 INFO L226 Difference]: Without dead ends: 11485 [2022-01-18 09:31:36,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:31:36,988 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1126 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:36,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 2668 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:31:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11485 states. [2022-01-18 09:31:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11485 to 5820. [2022-01-18 09:31:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5820 states, 5818 states have (on average 2.7169130285321414) internal successors, (15807), 5819 states have internal predecessors, (15807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5820 states to 5820 states and 15807 transitions. [2022-01-18 09:31:37,087 INFO L78 Accepts]: Start accepts. Automaton has 5820 states and 15807 transitions. Word has length 130 [2022-01-18 09:31:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:37,087 INFO L470 AbstractCegarLoop]: Abstraction has 5820 states and 15807 transitions. [2022-01-18 09:31:37,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5820 states and 15807 transitions. [2022-01-18 09:31:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:37,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:37,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:37,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-01-18 09:31:37,094 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash -589406218, now seen corresponding path program 360 times [2022-01-18 09:31:37,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:37,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411770486] [2022-01-18 09:31:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:37,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:37,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:37,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:37,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411770486] [2022-01-18 09:31:37,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411770486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:37,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:37,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-18 09:31:37,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241800418] [2022-01-18 09:31:37,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:37,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:31:37,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:37,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:31:37,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:31:37,488 INFO L87 Difference]: Start difference. First operand 5820 states and 15807 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:38,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:38,963 INFO L93 Difference]: Finished difference Result 10242 states and 26785 transitions. [2022-01-18 09:31:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:31:38,963 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:38,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:38,977 INFO L225 Difference]: With dead ends: 10242 [2022-01-18 09:31:38,977 INFO L226 Difference]: Without dead ends: 10242 [2022-01-18 09:31:38,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=1326, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:31:38,978 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1074 mSDsluCounter, 4157 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:38,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 4506 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:38,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10242 states. [2022-01-18 09:31:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10242 to 5354. [2022-01-18 09:31:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 2.6978699551569507) internal successors, (14439), 5353 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 14439 transitions. [2022-01-18 09:31:39,065 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 14439 transitions. Word has length 130 [2022-01-18 09:31:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:39,066 INFO L470 AbstractCegarLoop]: Abstraction has 5354 states and 14439 transitions. [2022-01-18 09:31:39,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 14439 transitions. [2022-01-18 09:31:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:39,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:39,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:39,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-01-18 09:31:39,091 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash 74764586, now seen corresponding path program 361 times [2022-01-18 09:31:39,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:39,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346521843] [2022-01-18 09:31:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:39,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:39,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:39,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346521843] [2022-01-18 09:31:39,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346521843] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:39,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:39,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-18 09:31:39,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934727386] [2022-01-18 09:31:39,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:39,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 09:31:39,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 09:31:39,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-01-18 09:31:39,676 INFO L87 Difference]: Start difference. First operand 5354 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:42,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:42,997 INFO L93 Difference]: Finished difference Result 11757 states and 30731 transitions. [2022-01-18 09:31:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:31:42,997 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-01-18 09:31:42,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:43,013 INFO L225 Difference]: With dead ends: 11757 [2022-01-18 09:31:43,014 INFO L226 Difference]: Without dead ends: 11757 [2022-01-18 09:31:43,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=660, Invalid=2096, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:31:43,014 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1441 mSDsluCounter, 3977 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:43,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 4289 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2022-01-18 09:31:43,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 5484. [2022-01-18 09:31:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6995622035753373) internal successors, (14799), 5483 states have internal predecessors, (14799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14799 transitions. [2022-01-18 09:31:43,116 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14799 transitions. Word has length 130 [2022-01-18 09:31:43,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:43,116 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 14799 transitions. [2022-01-18 09:31:43,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14799 transitions. [2022-01-18 09:31:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-18 09:31:43,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:43,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:43,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-01-18 09:31:43,122 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:43,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:43,122 INFO L85 PathProgramCache]: Analyzing trace with hash -271314902, now seen corresponding path program 362 times [2022-01-18 09:31:43,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:43,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465849652] [2022-01-18 09:31:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:43,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:43,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:43,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465849652] [2022-01-18 09:31:43,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465849652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:43,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:43,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:31:43,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641536130] [2022-01-18 09:31:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:43,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:31:43,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:31:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:31:43,489 INFO L87 Difference]: Start difference. First operand 5484 states and 14799 transitions. Second operand has 20 states, 20 states have (on average 6.5) internal successors, (130), 20 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 09:31:44,524 WARN L244 SmtUtils]: Removed 9 from assertion stack [2022-01-18 09:31:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:31:44,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=294, Invalid=828, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:31:44,525 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 509 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:44,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 1770 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:31:44,526 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-01-18 09:31:44,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-01-18 09:31:44,526 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 8 remaining) [2022-01-18 09:31:44,527 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 8 remaining) [2022-01-18 09:31:44,529 INFO L732 BasicCegarLoop]: Path program histogram: [362, 1, 1, 1, 1, 1] [2022-01-18 09:31:44,531 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:31:44,531 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:31:44,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:31:44 BasicIcfg [2022-01-18 09:31:44,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:31:44,532 INFO L158 Benchmark]: Toolchain (without parser) took 720567.01ms. Allocated memory was 442.5MB in the beginning and 1.8GB in the end (delta: 1.4GB). Free memory was 414.3MB in the beginning and 694.5MB in the end (delta: -280.1MB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2022-01-18 09:31:44,532 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 442.5MB. Free memory is still 403.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:31:44,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.97ms. Allocated memory was 442.5MB in the beginning and 698.4MB in the end (delta: 255.9MB). Free memory was 414.3MB in the beginning and 626.3MB in the end (delta: -212.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.0GB. [2022-01-18 09:31:44,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.77ms. Allocated memory is still 698.4MB. Free memory was 625.8MB in the beginning and 622.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 09:31:44,532 INFO L158 Benchmark]: Boogie Preprocessor took 27.76ms. Allocated memory is still 698.4MB. Free memory was 622.7MB in the beginning and 620.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:31:44,532 INFO L158 Benchmark]: RCFGBuilder took 427.34ms. Allocated memory is still 698.4MB. Free memory was 620.0MB in the beginning and 599.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 09:31:44,532 INFO L158 Benchmark]: TraceAbstraction took 719446.83ms. Allocated memory was 698.4MB in the beginning and 1.8GB in the end (delta: 1.1GB). Free memory was 599.1MB in the beginning and 694.5MB in the end (delta: -95.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. [2022-01-18 09:31:44,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 442.5MB. Free memory is still 403.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 612.97ms. Allocated memory was 442.5MB in the beginning and 698.4MB in the end (delta: 255.9MB). Free memory was 414.3MB in the beginning and 626.3MB in the end (delta: -212.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.77ms. Allocated memory is still 698.4MB. Free memory was 625.8MB in the beginning and 622.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.76ms. Allocated memory is still 698.4MB. Free memory was 622.7MB in the beginning and 620.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 427.34ms. Allocated memory is still 698.4MB. Free memory was 620.0MB in the beginning and 599.6MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 719446.83ms. Allocated memory was 698.4MB in the beginning and 1.8GB in the end (delta: 1.1GB). Free memory was 599.1MB in the beginning and 694.5MB in the end (delta: -95.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5484states) and FLOYD_HOARE automaton (currently 17 states, 20 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 78 for 103ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 204 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 719.3s, OverallIterations: 367, TraceHistogramMax: 1, PathProgramHistogramMax: 362, EmptinessCheckTime: 2.6s, AutomataDifference: 535.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462194 SdHoareTripleChecker+Valid, 133.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 462194 mSDsluCounter, 1126151 SdHoareTripleChecker+Invalid, 113.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 994795 mSDsCounter, 8313 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271690 IncrementalHoareTripleChecker+Invalid, 280003 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8313 mSolverCounterUnsat, 149949 mSDtfsCounter, 271690 mSolverCounterSat, 2.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14629 GetRequests, 1684 SyntacticMatches, 40 SemanticMatches, 12904 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51267 ImplicationChecksByTransitivity, 425.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11323occurred in iteration=0, InterpolantAutomatonStates: 7658, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 48.5s AutomataMinimizationTime, 366 MinimizatonAttempts, 3534448 StatesRemovedByMinimization, 365 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 121.0s InterpolantComputationTime, 47414 NumberOfCodeBlocks, 47414 NumberOfCodeBlocksAsserted, 367 NumberOfCheckSat, 47047 ConstructedInterpolants, 0 QuantifiedInterpolants, 395935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 367 InterpolantComputations, 367 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown