/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-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 09:21:20,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 09:21:20,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 09:21:20,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 09:21:20,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 09:21:20,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 09:21:20,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 09:21:20,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 09:21:20,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 09:21:20,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 09:21:20,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 09:21:20,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 09:21:20,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 09:21:20,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 09:21:20,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 09:21:20,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 09:21:20,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 09:21:20,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 09:21:20,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 09:21:20,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 09:21:20,778 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 09:21:20,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 09:21:20,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 09:21:20,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 09:21:20,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 09:21:20,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 09:21:20,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 09:21:20,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 09:21:20,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 09:21:20,797 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 09:21:20,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 09:21:20,797 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 09:21:20,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 09:21:20,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 09:21:20,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 09:21:20,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:21:20,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 09:21:20,799 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 09:21:20,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 09:21:20,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 09:21:21,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 09:21:21,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 09:21:21,004 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 09:21:21,004 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 09:21:21,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-01-18 09:21:21,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e94dde93/cbf502af0bde418aae0573afb2d29bac/FLAG737be564f [2022-01-18 09:21:21,500 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 09:21:21,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2022-01-18 09:21:21,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e94dde93/cbf502af0bde418aae0573afb2d29bac/FLAG737be564f [2022-01-18 09:21:22,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e94dde93/cbf502af0bde418aae0573afb2d29bac [2022-01-18 09:21:22,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 09:21:22,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 09:21:22,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 09:21:22,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 09:21:22,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 09:21:22,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1934800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22, skipping insertion in model container [2022-01-18 09:21:22,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 09:21:22,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 09:21:22,424 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-3_1-container_of-global.i[76084,76097] [2022-01-18 09:21:22,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:21:22,456 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 09:21:22,489 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-3_1-container_of-global.i[76084,76097] [2022-01-18 09:21:22,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 09:21:22,570 INFO L208 MainTranslator]: Completed translation [2022-01-18 09:21:22,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22 WrapperNode [2022-01-18 09:21:22,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 09:21:22,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 09:21:22,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 09:21:22,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 09:21:22,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,628 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-01-18 09:21:22,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 09:21:22,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 09:21:22,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 09:21:22,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 09:21:22,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 09:21:22,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 09:21:22,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 09:21:22,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 09:21:22,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (1/1) ... [2022-01-18 09:21:22,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 09:21:22,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:21:22,682 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 09:21:22,683 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 09:21:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 09:21:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 09:21:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 09:21:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 09:21:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-18 09:21:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 09:21:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 09:21:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-01-18 09:21:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-01-18 09:21:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 09:21:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 09:21:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 09:21:22,709 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 09:21:22,931 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 09:21:22,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 09:21:23,097 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 09:21:23,103 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 09:21:23,104 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 09:21:23,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:21:23 BoogieIcfgContainer [2022-01-18 09:21:23,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 09:21:23,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 09:21:23,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 09:21:23,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 09:21:23,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 09:21:22" (1/3) ... [2022-01-18 09:21:23,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7457d258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:21:23, skipping insertion in model container [2022-01-18 09:21:23,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 09:21:22" (2/3) ... [2022-01-18 09:21:23,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7457d258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 09:21:23, skipping insertion in model container [2022-01-18 09:21:23,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 09:21:23" (3/3) ... [2022-01-18 09:21:23,112 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-01-18 09:21:23,115 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 09:21:23,116 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 09:21:23,116 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-18 09:21:23,116 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 09:21:23,146 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,146 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,146 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,146 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,147 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,148 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,149 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,150 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,151 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,152 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,153 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,154 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,155 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,156 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,157 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,158 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,159 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,160 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,160 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,162 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,163 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,163 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,163 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,164 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,164 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,164 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,165 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 09:21:23,167 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 09:21:23,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 09:21:23,213 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 09:21:23,214 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-18 09:21:23,222 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 192 places, 194 transitions, 404 flow [2022-01-18 09:21:23,437 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9892 states, 9882 states have (on average 2.8408216960129526) internal successors, (28073), 9891 states have internal predecessors, (28073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:23,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 9892 states, 9882 states have (on average 2.8408216960129526) internal successors, (28073), 9891 states have internal predecessors, (28073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:23,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-18 09:21:23,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:23,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:23,475 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 09:21:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash -974822883, now seen corresponding path program 1 times [2022-01-18 09:21:23,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:23,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610099377] [2022-01-18 09:21:23,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:23,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:23,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:23,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610099377] [2022-01-18 09:21:23,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610099377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:23,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:23,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:21:23,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053511875] [2022-01-18 09:21:23,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:23,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:21:23,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:23,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:21:23,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:21:23,900 INFO L87 Difference]: Start difference. First operand has 9892 states, 9882 states have (on average 2.8408216960129526) internal successors, (28073), 9891 states have internal predecessors, (28073), 0 states have call successors, (0), 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 09:21:24,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:24,183 INFO L93 Difference]: Finished difference Result 9496 states and 26552 transitions. [2022-01-18 09:21:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:21:24,187 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 09:21:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:24,238 INFO L225 Difference]: With dead ends: 9496 [2022-01-18 09:21:24,239 INFO L226 Difference]: Without dead ends: 7725 [2022-01-18 09:21:24,240 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 09:21:24,243 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 176 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:24,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 658 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:24,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-01-18 09:21:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 7722. [2022-01-18 09:21:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7715 states have (on average 2.7870382372002593) internal successors, (21502), 7721 states have internal predecessors, (21502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:24,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 21502 transitions. [2022-01-18 09:21:24,516 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 21502 transitions. Word has length 45 [2022-01-18 09:21:24,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:24,517 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 21502 transitions. [2022-01-18 09:21:24,517 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 09:21:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 21502 transitions. [2022-01-18 09:21:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 09:21:24,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:24,519 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] [2022-01-18 09:21:24,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 09:21:24,520 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 09:21:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:24,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2102646053, now seen corresponding path program 1 times [2022-01-18 09:21:24,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:24,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887083354] [2022-01-18 09:21:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:24,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:24,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:24,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887083354] [2022-01-18 09:21:24,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887083354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:24,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:24,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:21:24,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080283766] [2022-01-18 09:21:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:24,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:21:24,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:21:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:21:24,672 INFO L87 Difference]: Start difference. First operand 7722 states and 21502 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 09:21:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:24,907 INFO L93 Difference]: Finished difference Result 7727 states and 21507 transitions. [2022-01-18 09:21:24,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:21:24,907 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 09:21:24,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:24,941 INFO L225 Difference]: With dead ends: 7727 [2022-01-18 09:21:24,942 INFO L226 Difference]: Without dead ends: 7727 [2022-01-18 09:21:24,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:24,947 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 261 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:24,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 584 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:24,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7727 states. [2022-01-18 09:21:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7727 to 7720. [2022-01-18 09:21:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7720 states, 7714 states have (on average 2.787140264454239) internal successors, (21500), 7719 states have internal predecessors, (21500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:25,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7720 states to 7720 states and 21500 transitions. [2022-01-18 09:21:25,148 INFO L78 Accepts]: Start accepts. Automaton has 7720 states and 21500 transitions. Word has length 53 [2022-01-18 09:21:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:25,149 INFO L470 AbstractCegarLoop]: Abstraction has 7720 states and 21500 transitions. [2022-01-18 09:21:25,149 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 09:21:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7720 states and 21500 transitions. [2022-01-18 09:21:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-18 09:21:25,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:25,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:25,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 09:21:25,156 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 09:21:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2061215173, now seen corresponding path program 1 times [2022-01-18 09:21:25,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:25,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153373078] [2022-01-18 09:21:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:25,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:25,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:25,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153373078] [2022-01-18 09:21:25,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153373078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:25,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:25,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:21:25,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334085886] [2022-01-18 09:21:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:25,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:21:25,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:21:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:21:25,291 INFO L87 Difference]: Start difference. First operand 7720 states and 21500 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 09:21:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:25,549 INFO L93 Difference]: Finished difference Result 11589 states and 32208 transitions. [2022-01-18 09:21:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 09:21:25,549 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 09:21:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:25,614 INFO L225 Difference]: With dead ends: 11589 [2022-01-18 09:21:25,615 INFO L226 Difference]: Without dead ends: 11589 [2022-01-18 09:21:25,615 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 09:21:25,619 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 410 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 894 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 09:21:25,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 894 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2022-01-18 09:21:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 8649. [2022-01-18 09:21:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8649 states, 8644 states have (on average 2.787482646922721) internal successors, (24095), 8648 states have internal predecessors, (24095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8649 states to 8649 states and 24095 transitions. [2022-01-18 09:21:25,853 INFO L78 Accepts]: Start accepts. Automaton has 8649 states and 24095 transitions. Word has length 76 [2022-01-18 09:21:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:25,853 INFO L470 AbstractCegarLoop]: Abstraction has 8649 states and 24095 transitions. [2022-01-18 09:21:25,853 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 09:21:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8649 states and 24095 transitions. [2022-01-18 09:21:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-18 09:21:25,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:25,856 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] [2022-01-18 09:21:25,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 09:21:25,856 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 09:21:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:25,857 INFO L85 PathProgramCache]: Analyzing trace with hash 856568329, now seen corresponding path program 1 times [2022-01-18 09:21:25,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:25,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747936209] [2022-01-18 09:21:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:25,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:25,950 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 09:21:25,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:25,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747936209] [2022-01-18 09:21:25,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747936209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:25,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:25,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 09:21:25,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108466839] [2022-01-18 09:21:25,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:25,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 09:21:25,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:25,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 09:21:25,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 09:21:25,953 INFO L87 Difference]: Start difference. First operand 8649 states and 24095 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 09:21:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:26,197 INFO L93 Difference]: Finished difference Result 12371 states and 34243 transitions. [2022-01-18 09:21:26,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:21:26,197 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 09:21:26,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:26,219 INFO L225 Difference]: With dead ends: 12371 [2022-01-18 09:21:26,219 INFO L226 Difference]: Without dead ends: 10304 [2022-01-18 09:21:26,219 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 09:21:26,224 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 321 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 906 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 09:21:26,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 906 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10304 states. [2022-01-18 09:21:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10304 to 10010. [2022-01-18 09:21:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 10006 states have (on average 2.790125924445333) internal successors, (27918), 10009 states have internal predecessors, (27918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 27918 transitions. [2022-01-18 09:21:26,448 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 27918 transitions. Word has length 84 [2022-01-18 09:21:26,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:26,448 INFO L470 AbstractCegarLoop]: Abstraction has 10010 states and 27918 transitions. [2022-01-18 09:21:26,449 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 09:21:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 27918 transitions. [2022-01-18 09:21:26,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-18 09:21:26,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:26,457 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] [2022-01-18 09:21:26,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 09:21:26,457 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 09:21:26,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:26,457 INFO L85 PathProgramCache]: Analyzing trace with hash -488309147, now seen corresponding path program 1 times [2022-01-18 09:21:26,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:26,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588028307] [2022-01-18 09:21:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:26,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:26,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:26,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588028307] [2022-01-18 09:21:26,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588028307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:26,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:26,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 09:21:26,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937921772] [2022-01-18 09:21:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:26,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 09:21:26,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:26,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 09:21:26,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 09:21:26,580 INFO L87 Difference]: Start difference. First operand 10010 states and 27918 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 09:21:26,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:26,630 INFO L93 Difference]: Finished difference Result 3377 states and 9148 transitions. [2022-01-18 09:21:26,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 09:21:26,634 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 09:21:26,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:26,640 INFO L225 Difference]: With dead ends: 3377 [2022-01-18 09:21:26,641 INFO L226 Difference]: Without dead ends: 3377 [2022-01-18 09:21:26,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:21:26,642 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 181 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 630 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 09:21:26,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 630 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 09:21:26,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2022-01-18 09:21:26,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 3377. [2022-01-18 09:21:26,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3375 states have (on average 2.7105185185185183) internal successors, (9148), 3376 states have internal predecessors, (9148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 9148 transitions. [2022-01-18 09:21:26,700 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 9148 transitions. Word has length 96 [2022-01-18 09:21:26,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:26,701 INFO L470 AbstractCegarLoop]: Abstraction has 3377 states and 9148 transitions. [2022-01-18 09:21:26,701 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 09:21:26,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 9148 transitions. [2022-01-18 09:21:26,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:26,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:26,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:26,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 09:21:26,713 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 09:21:26,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:26,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1501505866, now seen corresponding path program 1 times [2022-01-18 09:21:26,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:26,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108673293] [2022-01-18 09:21:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:26,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:27,348 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 09:21:27,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:27,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108673293] [2022-01-18 09:21:27,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108673293] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:27,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:27,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:21:27,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303033365] [2022-01-18 09:21:27,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:27,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:21:27,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:21:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:21:27,350 INFO L87 Difference]: Start difference. First operand 3377 states and 9148 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:27,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:27,883 INFO L93 Difference]: Finished difference Result 3872 states and 10217 transitions. [2022-01-18 09:21:27,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 09:21:27,883 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:27,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:27,890 INFO L225 Difference]: With dead ends: 3872 [2022-01-18 09:21:27,890 INFO L226 Difference]: Without dead ends: 3872 [2022-01-18 09:21:27,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:21:27,892 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 597 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:27,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 1158 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2022-01-18 09:21:27,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3626. [2022-01-18 09:21:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.6735651214128033) internal successors, (9689), 3625 states have internal predecessors, (9689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9689 transitions. [2022-01-18 09:21:27,962 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9689 transitions. Word has length 129 [2022-01-18 09:21:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:27,962 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 9689 transitions. [2022-01-18 09:21:27,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9689 transitions. [2022-01-18 09:21:27,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:27,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:27,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:27,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 09:21:27,969 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 09:21:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:27,970 INFO L85 PathProgramCache]: Analyzing trace with hash -2130164636, now seen corresponding path program 2 times [2022-01-18 09:21:27,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:27,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112978478] [2022-01-18 09:21:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:27,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:28,498 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 09:21:28,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:28,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112978478] [2022-01-18 09:21:28,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112978478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:28,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:28,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:28,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723214454] [2022-01-18 09:21:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:28,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:28,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:28,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:28,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:28,499 INFO L87 Difference]: Start difference. First operand 3626 states and 9689 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:29,399 INFO L93 Difference]: Finished difference Result 4414 states and 11364 transitions. [2022-01-18 09:21:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:29,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:29,407 INFO L225 Difference]: With dead ends: 4414 [2022-01-18 09:21:29,408 INFO L226 Difference]: Without dead ends: 4414 [2022-01-18 09:21:29,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:21:29,409 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 712 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:29,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 1825 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4414 states. [2022-01-18 09:21:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4414 to 3766. [2022-01-18 09:21:29,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 2.6644527098831032) internal successors, (10029), 3765 states have internal predecessors, (10029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 10029 transitions. [2022-01-18 09:21:29,473 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 10029 transitions. Word has length 129 [2022-01-18 09:21:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:29,474 INFO L470 AbstractCegarLoop]: Abstraction has 3766 states and 10029 transitions. [2022-01-18 09:21:29,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 10029 transitions. [2022-01-18 09:21:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:29,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:29,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:29,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 09:21:29,482 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 09:21:29,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:29,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2066657718, now seen corresponding path program 3 times [2022-01-18 09:21:29,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:29,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99412011] [2022-01-18 09:21:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:29,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:29,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:29,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99412011] [2022-01-18 09:21:29,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99412011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:29,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:29,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:21:29,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186821873] [2022-01-18 09:21:29,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:29,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:21:29,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:29,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:21:29,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:21:29,808 INFO L87 Difference]: Start difference. First operand 3766 states and 10029 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:30,395 INFO L93 Difference]: Finished difference Result 4483 states and 11557 transitions. [2022-01-18 09:21:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 09:21:30,395 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:30,403 INFO L225 Difference]: With dead ends: 4483 [2022-01-18 09:21:30,403 INFO L226 Difference]: Without dead ends: 4483 [2022-01-18 09:21:30,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:21:30,404 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 595 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:30,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [595 Valid, 1555 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2022-01-18 09:21:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 3733. [2022-01-18 09:21:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3731 states have (on average 2.6671133744304476) internal successors, (9951), 3732 states have internal predecessors, (9951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:30,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 9951 transitions. [2022-01-18 09:21:30,466 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 9951 transitions. Word has length 129 [2022-01-18 09:21:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:30,466 INFO L470 AbstractCegarLoop]: Abstraction has 3733 states and 9951 transitions. [2022-01-18 09:21:30,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 9951 transitions. [2022-01-18 09:21:30,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:30,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:30,473 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] [2022-01-18 09:21:30,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 09:21:30,473 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 09:21:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:30,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1403360924, now seen corresponding path program 4 times [2022-01-18 09:21:30,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:30,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442517037] [2022-01-18 09:21:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:30,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:30,932 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 09:21:30,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:30,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442517037] [2022-01-18 09:21:30,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442517037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:30,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:30,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:30,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530982419] [2022-01-18 09:21:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:30,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:30,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:30,933 INFO L87 Difference]: Start difference. First operand 3733 states and 9951 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:32,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:32,130 INFO L93 Difference]: Finished difference Result 6349 states and 16559 transitions. [2022-01-18 09:21:32,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:32,130 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:32,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:32,142 INFO L225 Difference]: With dead ends: 6349 [2022-01-18 09:21:32,142 INFO L226 Difference]: Without dead ends: 6349 [2022-01-18 09:21:32,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:21:32,143 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 779 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:32,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [779 Valid, 2129 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:21:32,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6349 states. [2022-01-18 09:21:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6349 to 3803. [2022-01-18 09:21:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3801 states have (on average 2.6732438831886345) internal successors, (10161), 3802 states have internal predecessors, (10161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 10161 transitions. [2022-01-18 09:21:32,202 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 10161 transitions. Word has length 129 [2022-01-18 09:21:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:32,202 INFO L470 AbstractCegarLoop]: Abstraction has 3803 states and 10161 transitions. [2022-01-18 09:21:32,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 10161 transitions. [2022-01-18 09:21:32,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:32,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:32,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:32,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 09:21:32,209 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 09:21:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1236110944, now seen corresponding path program 5 times [2022-01-18 09:21:32,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:32,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40594613] [2022-01-18 09:21:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:32,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:32,542 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 09:21:32,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:32,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40594613] [2022-01-18 09:21:32,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40594613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:32,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:32,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:21:32,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152404737] [2022-01-18 09:21:32,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:32,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:21:32,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:21:32,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:21:32,543 INFO L87 Difference]: Start difference. First operand 3803 states and 10161 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:33,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:33,136 INFO L93 Difference]: Finished difference Result 4758 states and 12434 transitions. [2022-01-18 09:21:33,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 09:21:33,136 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:33,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:33,144 INFO L225 Difference]: With dead ends: 4758 [2022-01-18 09:21:33,144 INFO L226 Difference]: Without dead ends: 4758 [2022-01-18 09:21:33,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2022-01-18 09:21:33,145 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 548 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:33,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 1482 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4758 states. [2022-01-18 09:21:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4758 to 4293. [2022-01-18 09:21:33,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4293 states, 4291 states have (on average 2.671405266837567) internal successors, (11463), 4292 states have internal predecessors, (11463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:33,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4293 states to 4293 states and 11463 transitions. [2022-01-18 09:21:33,210 INFO L78 Accepts]: Start accepts. Automaton has 4293 states and 11463 transitions. Word has length 129 [2022-01-18 09:21:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:33,210 INFO L470 AbstractCegarLoop]: Abstraction has 4293 states and 11463 transitions. [2022-01-18 09:21:33,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4293 states and 11463 transitions. [2022-01-18 09:21:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:33,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:33,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:33,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 09:21:33,218 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 09:21:33,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash 97790622, now seen corresponding path program 6 times [2022-01-18 09:21:33,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:33,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364026256] [2022-01-18 09:21:33,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:33,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:33,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:33,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364026256] [2022-01-18 09:21:33,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364026256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:33,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:33,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:21:33,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902950269] [2022-01-18 09:21:33,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:33,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:21:33,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:33,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:21:33,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:21:33,533 INFO L87 Difference]: Start difference. First operand 4293 states and 11463 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:34,139 INFO L93 Difference]: Finished difference Result 4898 states and 12685 transitions. [2022-01-18 09:21:34,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 09:21:34,139 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:34,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:34,146 INFO L225 Difference]: With dead ends: 4898 [2022-01-18 09:21:34,146 INFO L226 Difference]: Without dead ends: 4898 [2022-01-18 09:21:34,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:21:34,147 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 673 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:34,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 1912 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:34,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2022-01-18 09:21:34,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4194. [2022-01-18 09:21:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 4192 states have (on average 2.6786736641221376) internal successors, (11229), 4193 states have internal predecessors, (11229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:34,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 11229 transitions. [2022-01-18 09:21:34,207 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 11229 transitions. Word has length 129 [2022-01-18 09:21:34,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:34,207 INFO L470 AbstractCegarLoop]: Abstraction has 4194 states and 11229 transitions. [2022-01-18 09:21:34,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 11229 transitions. [2022-01-18 09:21:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:34,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:34,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:34,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 09:21:34,214 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 09:21:34,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash -422935260, now seen corresponding path program 7 times [2022-01-18 09:21:34,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:34,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3375820] [2022-01-18 09:21:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:34,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:34,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:34,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:34,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3375820] [2022-01-18 09:21:34,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3375820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:34,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:34,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:34,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231462008] [2022-01-18 09:21:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:34,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:34,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:34,636 INFO L87 Difference]: Start difference. First operand 4194 states and 11229 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:35,646 INFO L93 Difference]: Finished difference Result 6885 states and 18165 transitions. [2022-01-18 09:21:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 09:21:35,646 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:35,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:35,655 INFO L225 Difference]: With dead ends: 6885 [2022-01-18 09:21:35,655 INFO L226 Difference]: Without dead ends: 6885 [2022-01-18 09:21:35,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=276, Invalid=716, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:21:35,656 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 721 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:35,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 1681 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2022-01-18 09:21:35,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 4894. [2022-01-18 09:21:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 4892 states have (on average 2.7103434178250203) internal successors, (13259), 4893 states have internal predecessors, (13259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:35,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 13259 transitions. [2022-01-18 09:21:35,764 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 13259 transitions. Word has length 129 [2022-01-18 09:21:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:35,764 INFO L470 AbstractCegarLoop]: Abstraction has 4894 states and 13259 transitions. [2022-01-18 09:21:35,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 13259 transitions. [2022-01-18 09:21:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:35,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:35,773 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] [2022-01-18 09:21:35,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 09:21:35,773 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 09:21:35,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash -420432188, now seen corresponding path program 8 times [2022-01-18 09:21:35,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:35,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339423182] [2022-01-18 09:21:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:35,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:36,293 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 09:21:36,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:36,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339423182] [2022-01-18 09:21:36,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339423182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:36,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:36,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:36,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870920296] [2022-01-18 09:21:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:36,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:36,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:36,295 INFO L87 Difference]: Start difference. First operand 4894 states and 13259 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:38,000 INFO L93 Difference]: Finished difference Result 8309 states and 21767 transitions. [2022-01-18 09:21:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 09:21:38,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:38,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:38,011 INFO L225 Difference]: With dead ends: 8309 [2022-01-18 09:21:38,011 INFO L226 Difference]: Without dead ends: 8309 [2022-01-18 09:21:38,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=464, Invalid=1258, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:38,012 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 850 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:38,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 2446 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:21:38,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2022-01-18 09:21:38,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 4894. [2022-01-18 09:21:38,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 4892 states have (on average 2.7103434178250203) internal successors, (13259), 4893 states have internal predecessors, (13259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 13259 transitions. [2022-01-18 09:21:38,118 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 13259 transitions. Word has length 129 [2022-01-18 09:21:38,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:38,118 INFO L470 AbstractCegarLoop]: Abstraction has 4894 states and 13259 transitions. [2022-01-18 09:21:38,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 13259 transitions. [2022-01-18 09:21:38,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:38,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:38,129 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] [2022-01-18 09:21:38,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 09:21:38,130 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 09:21:38,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:38,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1617045072, now seen corresponding path program 9 times [2022-01-18 09:21:38,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:38,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714280848] [2022-01-18 09:21:38,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:38,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:38,563 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 09:21:38,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:38,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714280848] [2022-01-18 09:21:38,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714280848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:38,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:38,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-18 09:21:38,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476524976] [2022-01-18 09:21:38,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:38,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 09:21:38,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 09:21:38,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-01-18 09:21:38,564 INFO L87 Difference]: Start difference. First operand 4894 states and 13259 transitions. Second operand has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:39,422 INFO L93 Difference]: Finished difference Result 6262 states and 16171 transitions. [2022-01-18 09:21:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:39,423 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:39,431 INFO L225 Difference]: With dead ends: 6262 [2022-01-18 09:21:39,431 INFO L226 Difference]: Without dead ends: 6262 [2022-01-18 09:21:39,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:21:39,432 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 643 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:39,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 1729 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2022-01-18 09:21:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 4900. [2022-01-18 09:21:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 4898 states have (on average 2.7100857492854225) internal successors, (13274), 4899 states have internal predecessors, (13274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:39,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 13274 transitions. [2022-01-18 09:21:39,535 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 13274 transitions. Word has length 129 [2022-01-18 09:21:39,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:39,535 INFO L470 AbstractCegarLoop]: Abstraction has 4900 states and 13274 transitions. [2022-01-18 09:21:39,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.166666666666667) internal successors, (129), 18 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 13274 transitions. [2022-01-18 09:21:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:39,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:39,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:39,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 09:21:39,542 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 09:21:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:39,543 INFO L85 PathProgramCache]: Analyzing trace with hash -333164114, now seen corresponding path program 10 times [2022-01-18 09:21:39,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:39,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655888402] [2022-01-18 09:21:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:39,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:39,805 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 09:21:39,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:39,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655888402] [2022-01-18 09:21:39,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655888402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:39,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:39,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:39,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950090078] [2022-01-18 09:21:39,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:39,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:39,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:39,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:39,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:39,807 INFO L87 Difference]: Start difference. First operand 4900 states and 13274 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:40,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:40,180 INFO L93 Difference]: Finished difference Result 9436 states and 25085 transitions. [2022-01-18 09:21:40,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 09:21:40,180 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:40,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:40,192 INFO L225 Difference]: With dead ends: 9436 [2022-01-18 09:21:40,192 INFO L226 Difference]: Without dead ends: 9436 [2022-01-18 09:21:40,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-01-18 09:21:40,193 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 809 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:40,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 1033 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2022-01-18 09:21:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 5124. [2022-01-18 09:21:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5124 states, 5122 states have (on average 2.7012885591565796) internal successors, (13836), 5123 states have internal predecessors, (13836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 13836 transitions. [2022-01-18 09:21:40,297 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 13836 transitions. Word has length 129 [2022-01-18 09:21:40,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:40,298 INFO L470 AbstractCegarLoop]: Abstraction has 5124 states and 13836 transitions. [2022-01-18 09:21:40,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 13836 transitions. [2022-01-18 09:21:40,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:40,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:40,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:40,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 09:21:40,305 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 09:21:40,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:40,306 INFO L85 PathProgramCache]: Analyzing trace with hash 754411924, now seen corresponding path program 11 times [2022-01-18 09:21:40,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:40,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647033927] [2022-01-18 09:21:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:40,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:40,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:40,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647033927] [2022-01-18 09:21:40,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647033927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:40,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:40,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:21:40,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908264266] [2022-01-18 09:21:40,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:40,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:21:40,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:40,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:21:40,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:21:40,614 INFO L87 Difference]: Start difference. First operand 5124 states and 13836 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:41,218 INFO L93 Difference]: Finished difference Result 6460 states and 16672 transitions. [2022-01-18 09:21:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 09:21:41,218 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:41,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:41,226 INFO L225 Difference]: With dead ends: 6460 [2022-01-18 09:21:41,226 INFO L226 Difference]: Without dead ends: 6460 [2022-01-18 09:21:41,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:21:41,227 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 661 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:41,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [661 Valid, 1423 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:41,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6460 states. [2022-01-18 09:21:41,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6460 to 5186. [2022-01-18 09:21:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5184 states have (on average 2.6984953703703702) internal successors, (13989), 5185 states have internal predecessors, (13989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 13989 transitions. [2022-01-18 09:21:41,304 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 13989 transitions. Word has length 129 [2022-01-18 09:21:41,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:41,305 INFO L470 AbstractCegarLoop]: Abstraction has 5186 states and 13989 transitions. [2022-01-18 09:21:41,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 13989 transitions. [2022-01-18 09:21:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:41,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:41,312 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] [2022-01-18 09:21:41,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 09:21:41,312 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 09:21:41,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1478433000, now seen corresponding path program 12 times [2022-01-18 09:21:41,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491404957] [2022-01-18 09:21:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:41,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:41,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:41,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491404957] [2022-01-18 09:21:41,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491404957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:41,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:41,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:41,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218803201] [2022-01-18 09:21:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:41,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:41,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:41,571 INFO L87 Difference]: Start difference. First operand 5186 states and 13989 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:41,954 INFO L93 Difference]: Finished difference Result 10499 states and 27503 transitions. [2022-01-18 09:21:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 09:21:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:41,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:41,968 INFO L225 Difference]: With dead ends: 10499 [2022-01-18 09:21:41,968 INFO L226 Difference]: Without dead ends: 10499 [2022-01-18 09:21:41,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:21:41,969 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 879 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:41,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 1019 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:41,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10499 states. [2022-01-18 09:21:42,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10499 to 5312. [2022-01-18 09:21:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5310 states have (on average 2.682674199623352) internal successors, (14245), 5311 states have internal predecessors, (14245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:42,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 14245 transitions. [2022-01-18 09:21:42,075 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 14245 transitions. Word has length 129 [2022-01-18 09:21:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:42,076 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 14245 transitions. [2022-01-18 09:21:42,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:42,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 14245 transitions. [2022-01-18 09:21:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:42,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:42,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:42,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 09:21:42,084 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 09:21:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1723672590, now seen corresponding path program 13 times [2022-01-18 09:21:42,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:42,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785631605] [2022-01-18 09:21:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:42,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:42,543 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 09:21:42,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:42,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785631605] [2022-01-18 09:21:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785631605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:42,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:42,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:42,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078568490] [2022-01-18 09:21:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:42,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:42,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:42,544 INFO L87 Difference]: Start difference. First operand 5312 states and 14245 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:43,535 INFO L93 Difference]: Finished difference Result 6564 states and 16886 transitions. [2022-01-18 09:21:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:43,536 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:43,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:43,545 INFO L225 Difference]: With dead ends: 6564 [2022-01-18 09:21:43,545 INFO L226 Difference]: Without dead ends: 6564 [2022-01-18 09:21:43,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 09:21:43,546 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 703 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:43,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 1684 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-01-18 09:21:43,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5324. [2022-01-18 09:21:43,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5324 states, 5322 states have (on average 2.682262307403232) internal successors, (14275), 5323 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:43,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5324 states to 5324 states and 14275 transitions. [2022-01-18 09:21:43,635 INFO L78 Accepts]: Start accepts. Automaton has 5324 states and 14275 transitions. Word has length 129 [2022-01-18 09:21:43,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:43,635 INFO L470 AbstractCegarLoop]: Abstraction has 5324 states and 14275 transitions. [2022-01-18 09:21:43,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:43,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5324 states and 14275 transitions. [2022-01-18 09:21:43,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:43,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:43,642 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] [2022-01-18 09:21:43,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 09:21:43,642 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 09:21:43,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:43,643 INFO L85 PathProgramCache]: Analyzing trace with hash -444427534, now seen corresponding path program 14 times [2022-01-18 09:21:43,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:43,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894443508] [2022-01-18 09:21:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:43,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:44,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:44,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894443508] [2022-01-18 09:21:44,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894443508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:44,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:44,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:21:44,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353330800] [2022-01-18 09:21:44,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:44,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:21:44,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:44,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:21:44,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:21:44,203 INFO L87 Difference]: Start difference. First operand 5324 states and 14275 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:45,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:45,321 INFO L93 Difference]: Finished difference Result 9567 states and 24765 transitions. [2022-01-18 09:21:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:45,322 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:45,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:45,334 INFO L225 Difference]: With dead ends: 9567 [2022-01-18 09:21:45,334 INFO L226 Difference]: Without dead ends: 9567 [2022-01-18 09:21:45,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:45,335 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 744 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:45,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 2119 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9567 states. [2022-01-18 09:21:45,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9567 to 5330. [2022-01-18 09:21:45,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5328 states have (on average 2.682057057057057) internal successors, (14290), 5329 states have internal predecessors, (14290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:45,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 14290 transitions. [2022-01-18 09:21:45,436 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 14290 transitions. Word has length 129 [2022-01-18 09:21:45,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:45,437 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 14290 transitions. [2022-01-18 09:21:45,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:45,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 14290 transitions. [2022-01-18 09:21:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:45,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:45,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:45,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 09:21:45,443 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 09:21:45,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:45,444 INFO L85 PathProgramCache]: Analyzing trace with hash -486268464, now seen corresponding path program 15 times [2022-01-18 09:21:45,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:45,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827106292] [2022-01-18 09:21:45,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:45,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:45,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:45,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827106292] [2022-01-18 09:21:45,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827106292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:45,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:45,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:45,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260165509] [2022-01-18 09:21:45,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:45,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:45,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:45,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:45,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:45,703 INFO L87 Difference]: Start difference. First operand 5330 states and 14290 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:46,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:46,060 INFO L93 Difference]: Finished difference Result 8540 states and 22684 transitions. [2022-01-18 09:21:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 09:21:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:46,072 INFO L225 Difference]: With dead ends: 8540 [2022-01-18 09:21:46,072 INFO L226 Difference]: Without dead ends: 8540 [2022-01-18 09:21:46,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2022-01-18 09:21:46,072 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 802 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:46,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 1110 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:46,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2022-01-18 09:21:46,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 5442. [2022-01-18 09:21:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5440 states have (on average 2.6873161764705884) internal successors, (14619), 5441 states have internal predecessors, (14619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:46,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14619 transitions. [2022-01-18 09:21:46,152 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14619 transitions. Word has length 129 [2022-01-18 09:21:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:46,152 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14619 transitions. [2022-01-18 09:21:46,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:46,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14619 transitions. [2022-01-18 09:21:46,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:46,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:46,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:46,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 09:21:46,158 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 09:21:46,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1619278254, now seen corresponding path program 16 times [2022-01-18 09:21:46,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:46,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690040113] [2022-01-18 09:21:46,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:46,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:46,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:46,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690040113] [2022-01-18 09:21:46,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690040113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:46,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:46,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:21:46,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104642468] [2022-01-18 09:21:46,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:46,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:21:46,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:46,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:21:46,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:21:46,421 INFO L87 Difference]: Start difference. First operand 5442 states and 14619 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:46,696 INFO L93 Difference]: Finished difference Result 8327 states and 21591 transitions. [2022-01-18 09:21:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:21:46,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:46,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:46,708 INFO L225 Difference]: With dead ends: 8327 [2022-01-18 09:21:46,709 INFO L226 Difference]: Without dead ends: 8327 [2022-01-18 09:21:46,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:46,710 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 767 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:46,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [767 Valid, 984 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8327 states. [2022-01-18 09:21:46,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8327 to 5438. [2022-01-18 09:21:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5436 states have (on average 2.6874540103016926) internal successors, (14609), 5437 states have internal predecessors, (14609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:46,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14609 transitions. [2022-01-18 09:21:46,830 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14609 transitions. Word has length 129 [2022-01-18 09:21:46,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:46,831 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14609 transitions. [2022-01-18 09:21:46,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14609 transitions. [2022-01-18 09:21:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:46,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:46,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:46,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 09:21:46,841 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 09:21:46,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:46,841 INFO L85 PathProgramCache]: Analyzing trace with hash -884417004, now seen corresponding path program 17 times [2022-01-18 09:21:46,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:46,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518745770] [2022-01-18 09:21:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:46,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:47,292 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 09:21:47,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:47,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518745770] [2022-01-18 09:21:47,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518745770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:47,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:47,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 09:21:47,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441389271] [2022-01-18 09:21:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:47,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 09:21:47,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:47,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 09:21:47,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-01-18 09:21:47,294 INFO L87 Difference]: Start difference. First operand 5438 states and 14609 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:47,827 INFO L93 Difference]: Finished difference Result 8003 states and 20969 transitions. [2022-01-18 09:21:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 09:21:47,827 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:47,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:47,838 INFO L225 Difference]: With dead ends: 8003 [2022-01-18 09:21:47,838 INFO L226 Difference]: Without dead ends: 8003 [2022-01-18 09:21:47,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:21:47,839 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 710 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:47,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 1615 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:47,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8003 states. [2022-01-18 09:21:47,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8003 to 5228. [2022-01-18 09:21:47,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5228 states, 5226 states have (on average 2.6829314963643323) internal successors, (14021), 5227 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5228 states to 5228 states and 14021 transitions. [2022-01-18 09:21:47,911 INFO L78 Accepts]: Start accepts. Automaton has 5228 states and 14021 transitions. Word has length 129 [2022-01-18 09:21:47,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:47,911 INFO L470 AbstractCegarLoop]: Abstraction has 5228 states and 14021 transitions. [2022-01-18 09:21:47,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5228 states and 14021 transitions. [2022-01-18 09:21:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:47,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:47,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:47,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 09:21:47,917 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 09:21:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1502832822, now seen corresponding path program 18 times [2022-01-18 09:21:47,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:47,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047428117] [2022-01-18 09:21:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:47,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:48,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:48,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047428117] [2022-01-18 09:21:48,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047428117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:48,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:48,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:21:48,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435809906] [2022-01-18 09:21:48,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:48,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:21:48,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:48,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:21:48,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:21:48,137 INFO L87 Difference]: Start difference. First operand 5228 states and 14021 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:48,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:48,388 INFO L93 Difference]: Finished difference Result 5760 states and 15349 transitions. [2022-01-18 09:21:48,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:21:48,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:48,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:48,395 INFO L225 Difference]: With dead ends: 5760 [2022-01-18 09:21:48,395 INFO L226 Difference]: Without dead ends: 5760 [2022-01-18 09:21:48,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:48,396 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 596 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:48,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 931 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:48,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2022-01-18 09:21:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5204. [2022-01-18 09:21:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 5202 states have (on average 2.683775470972703) internal successors, (13961), 5203 states have internal predecessors, (13961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 13961 transitions. [2022-01-18 09:21:48,460 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 13961 transitions. Word has length 129 [2022-01-18 09:21:48,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:48,460 INFO L470 AbstractCegarLoop]: Abstraction has 5204 states and 13961 transitions. [2022-01-18 09:21:48,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:48,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 13961 transitions. [2022-01-18 09:21:48,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:48,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:48,466 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] [2022-01-18 09:21:48,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 09:21:48,466 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 09:21:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1806665560, now seen corresponding path program 19 times [2022-01-18 09:21:48,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:48,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705316005] [2022-01-18 09:21:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:48,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:48,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:48,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705316005] [2022-01-18 09:21:48,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705316005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:48,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:48,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:48,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033219069] [2022-01-18 09:21:48,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:48,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:48,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:48,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:48,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:48,685 INFO L87 Difference]: Start difference. First operand 5204 states and 13961 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:48,999 INFO L93 Difference]: Finished difference Result 7410 states and 19502 transitions. [2022-01-18 09:21:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 09:21:49,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:49,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:49,009 INFO L225 Difference]: With dead ends: 7410 [2022-01-18 09:21:49,009 INFO L226 Difference]: Without dead ends: 7410 [2022-01-18 09:21:49,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-01-18 09:21:49,010 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 823 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:49,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 900 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7410 states. [2022-01-18 09:21:49,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7410 to 5142. [2022-01-18 09:21:49,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5142 states, 5140 states have (on average 2.680544747081712) internal successors, (13778), 5141 states have internal predecessors, (13778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 13778 transitions. [2022-01-18 09:21:49,077 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 13778 transitions. Word has length 129 [2022-01-18 09:21:49,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:49,077 INFO L470 AbstractCegarLoop]: Abstraction has 5142 states and 13778 transitions. [2022-01-18 09:21:49,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 13778 transitions. [2022-01-18 09:21:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:49,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:49,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:49,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 09:21:49,083 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 09:21:49,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:49,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1400725698, now seen corresponding path program 20 times [2022-01-18 09:21:49,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:49,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442440332] [2022-01-18 09:21:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:49,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:49,384 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 09:21:49,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:49,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442440332] [2022-01-18 09:21:49,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442440332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:49,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:49,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 09:21:49,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852687056] [2022-01-18 09:21:49,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:49,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 09:21:49,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:49,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 09:21:49,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-01-18 09:21:49,385 INFO L87 Difference]: Start difference. First operand 5142 states and 13778 transitions. Second operand has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:50,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:50,006 INFO L93 Difference]: Finished difference Result 5676 states and 14885 transitions. [2022-01-18 09:21:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:21:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:50,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:50,014 INFO L225 Difference]: With dead ends: 5676 [2022-01-18 09:21:50,014 INFO L226 Difference]: Without dead ends: 5676 [2022-01-18 09:21:50,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:50,015 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 634 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:50,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 1291 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:50,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-01-18 09:21:50,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5022. [2022-01-18 09:21:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 5020 states have (on average 2.6888446215139443) internal successors, (13498), 5021 states have internal predecessors, (13498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 13498 transitions. [2022-01-18 09:21:50,077 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 13498 transitions. Word has length 129 [2022-01-18 09:21:50,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:50,077 INFO L470 AbstractCegarLoop]: Abstraction has 5022 states and 13498 transitions. [2022-01-18 09:21:50,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.0625) internal successors, (129), 16 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 13498 transitions. [2022-01-18 09:21:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:50,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:50,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:50,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 09:21:50,083 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 09:21:50,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:50,084 INFO L85 PathProgramCache]: Analyzing trace with hash -676704622, now seen corresponding path program 21 times [2022-01-18 09:21:50,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:50,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854670708] [2022-01-18 09:21:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:50,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:50,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:50,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854670708] [2022-01-18 09:21:50,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854670708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:50,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:50,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:50,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031793494] [2022-01-18 09:21:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:50,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:50,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:50,311 INFO L87 Difference]: Start difference. First operand 5022 states and 13498 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:50,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:50,605 INFO L93 Difference]: Finished difference Result 5981 states and 15568 transitions. [2022-01-18 09:21:50,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 09:21:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:50,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:50,613 INFO L225 Difference]: With dead ends: 5981 [2022-01-18 09:21:50,613 INFO L226 Difference]: Without dead ends: 5981 [2022-01-18 09:21:50,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-01-18 09:21:50,613 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 793 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:50,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 925 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:21:50,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2022-01-18 09:21:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 4592. [2022-01-18 09:21:50,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4590 states have (on average 2.666884531590414) internal successors, (12241), 4591 states have internal predecessors, (12241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 12241 transitions. [2022-01-18 09:21:50,672 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 12241 transitions. Word has length 129 [2022-01-18 09:21:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:50,673 INFO L470 AbstractCegarLoop]: Abstraction has 4592 states and 12241 transitions. [2022-01-18 09:21:50,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 12241 transitions. [2022-01-18 09:21:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:50,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:50,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:50,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 09:21:50,678 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 09:21:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash -293802758, now seen corresponding path program 22 times [2022-01-18 09:21:50,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:50,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078167575] [2022-01-18 09:21:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:50,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:51,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:51,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078167575] [2022-01-18 09:21:51,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078167575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:51,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:51,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:21:51,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865090326] [2022-01-18 09:21:51,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:51,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:21:51,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:51,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:21:51,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:21:51,135 INFO L87 Difference]: Start difference. First operand 4592 states and 12241 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:51,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:51,911 INFO L93 Difference]: Finished difference Result 5729 states and 14626 transitions. [2022-01-18 09:21:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:21:51,911 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:51,919 INFO L225 Difference]: With dead ends: 5729 [2022-01-18 09:21:51,920 INFO L226 Difference]: Without dead ends: 5729 [2022-01-18 09:21:51,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:51,921 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 725 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:51,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 1723 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:51,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2022-01-18 09:21:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 4630. [2022-01-18 09:21:51,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4630 states, 4628 states have (on average 2.665514261019879) internal successors, (12336), 4629 states have internal predecessors, (12336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4630 states to 4630 states and 12336 transitions. [2022-01-18 09:21:51,977 INFO L78 Accepts]: Start accepts. Automaton has 4630 states and 12336 transitions. Word has length 129 [2022-01-18 09:21:51,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:51,977 INFO L470 AbstractCegarLoop]: Abstraction has 4630 states and 12336 transitions. [2022-01-18 09:21:51,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:51,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4630 states and 12336 transitions. [2022-01-18 09:21:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:51,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:51,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:51,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 09:21:51,984 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 09:21:51,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1298303702, now seen corresponding path program 23 times [2022-01-18 09:21:51,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:51,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248486372] [2022-01-18 09:21:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:51,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:52,193 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 09:21:52,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:52,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248486372] [2022-01-18 09:21:52,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248486372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:52,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:52,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:52,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041295495] [2022-01-18 09:21:52,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:52,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:52,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:52,194 INFO L87 Difference]: Start difference. First operand 4630 states and 12336 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:52,557 INFO L93 Difference]: Finished difference Result 5987 states and 15682 transitions. [2022-01-18 09:21:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 09:21:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:52,565 INFO L225 Difference]: With dead ends: 5987 [2022-01-18 09:21:52,565 INFO L226 Difference]: Without dead ends: 5987 [2022-01-18 09:21:52,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2022-01-18 09:21:52,566 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 636 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:52,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 1066 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:52,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2022-01-18 09:21:52,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 4496. [2022-01-18 09:21:52,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 2.661103693813974) internal successors, (11959), 4495 states have internal predecessors, (11959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:52,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 11959 transitions. [2022-01-18 09:21:52,621 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 11959 transitions. Word has length 129 [2022-01-18 09:21:52,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:52,621 INFO L470 AbstractCegarLoop]: Abstraction has 4496 states and 11959 transitions. [2022-01-18 09:21:52,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 11959 transitions. [2022-01-18 09:21:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:52,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:52,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:52,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 09:21:52,626 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 09:21:52,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:52,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1517794356, now seen corresponding path program 24 times [2022-01-18 09:21:52,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:52,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646940848] [2022-01-18 09:21:52,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:52,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:53,001 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 09:21:53,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:53,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646940848] [2022-01-18 09:21:53,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646940848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:53,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:53,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:53,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10843055] [2022-01-18 09:21:53,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:53,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:53,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:53,003 INFO L87 Difference]: Start difference. First operand 4496 states and 11959 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:53,811 INFO L93 Difference]: Finished difference Result 5725 states and 14552 transitions. [2022-01-18 09:21:53,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:21:53,812 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:53,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:53,818 INFO L225 Difference]: With dead ends: 5725 [2022-01-18 09:21:53,819 INFO L226 Difference]: Without dead ends: 5725 [2022-01-18 09:21:53,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:53,819 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 639 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:53,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 1629 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 09:21:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-01-18 09:21:53,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 4556. [2022-01-18 09:21:53,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 4554 states have (on average 2.6589811155028547) internal successors, (12109), 4555 states have internal predecessors, (12109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:53,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 12109 transitions. [2022-01-18 09:21:53,872 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 12109 transitions. Word has length 129 [2022-01-18 09:21:53,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:53,872 INFO L470 AbstractCegarLoop]: Abstraction has 4556 states and 12109 transitions. [2022-01-18 09:21:53,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:53,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 12109 transitions. [2022-01-18 09:21:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:53,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:53,877 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] [2022-01-18 09:21:53,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 09:21:53,877 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 09:21:53,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:53,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1684311234, now seen corresponding path program 25 times [2022-01-18 09:21:53,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:53,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732737294] [2022-01-18 09:21:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:53,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:54,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:54,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:54,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732737294] [2022-01-18 09:21:54,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732737294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:54,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:54,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:21:54,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946282369] [2022-01-18 09:21:54,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:54,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:21:54,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:54,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:21:54,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:21:54,095 INFO L87 Difference]: Start difference. First operand 4556 states and 12109 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:54,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:54,478 INFO L93 Difference]: Finished difference Result 8752 states and 22949 transitions. [2022-01-18 09:21:54,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 09:21:54,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:54,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:54,491 INFO L225 Difference]: With dead ends: 8752 [2022-01-18 09:21:54,491 INFO L226 Difference]: Without dead ends: 8752 [2022-01-18 09:21:54,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-01-18 09:21:54,492 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 708 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:54,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [708 Valid, 1067 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:21:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8752 states. [2022-01-18 09:21:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8752 to 4572. [2022-01-18 09:21:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4572 states, 4570 states have (on average 2.6599562363238514) internal successors, (12156), 4571 states have internal predecessors, (12156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4572 states to 4572 states and 12156 transitions. [2022-01-18 09:21:54,565 INFO L78 Accepts]: Start accepts. Automaton has 4572 states and 12156 transitions. Word has length 129 [2022-01-18 09:21:54,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:54,566 INFO L470 AbstractCegarLoop]: Abstraction has 4572 states and 12156 transitions. [2022-01-18 09:21:54,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 4572 states and 12156 transitions. [2022-01-18 09:21:54,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:54,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:54,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:54,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 09:21:54,570 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 09:21:54,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash 379394554, now seen corresponding path program 26 times [2022-01-18 09:21:54,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:54,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13569892] [2022-01-18 09:21:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:54,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:54,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:54,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:54,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13569892] [2022-01-18 09:21:54,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13569892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:54,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:54,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:54,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887443629] [2022-01-18 09:21:54,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:54,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:54,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:54,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:54,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:54,989 INFO L87 Difference]: Start difference. First operand 4572 states and 12156 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:55,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:55,842 INFO L93 Difference]: Finished difference Result 5948 states and 15070 transitions. [2022-01-18 09:21:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:21:55,842 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:55,849 INFO L225 Difference]: With dead ends: 5948 [2022-01-18 09:21:55,849 INFO L226 Difference]: Without dead ends: 5948 [2022-01-18 09:21:55,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=920, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 09:21:55,850 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 558 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:55,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 1976 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2022-01-18 09:21:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 4574. [2022-01-18 09:21:55,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4572 states have (on average 2.659886264216973) internal successors, (12161), 4573 states have internal predecessors, (12161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:55,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 12161 transitions. [2022-01-18 09:21:55,900 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 12161 transitions. Word has length 129 [2022-01-18 09:21:55,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:55,900 INFO L470 AbstractCegarLoop]: Abstraction has 4574 states and 12161 transitions. [2022-01-18 09:21:55,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 12161 transitions. [2022-01-18 09:21:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:55,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:55,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:55,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 09:21:55,905 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 09:21:55,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1865729682, now seen corresponding path program 27 times [2022-01-18 09:21:55,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:55,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691794562] [2022-01-18 09:21:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:55,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:56,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:56,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691794562] [2022-01-18 09:21:56,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691794562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:56,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:56,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:21:56,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897654020] [2022-01-18 09:21:56,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:56,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:21:56,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:21:56,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:21:56,425 INFO L87 Difference]: Start difference. First operand 4574 states and 12161 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:57,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:57,255 INFO L93 Difference]: Finished difference Result 5534 states and 14188 transitions. [2022-01-18 09:21:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 09:21:57,256 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:57,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:57,262 INFO L225 Difference]: With dead ends: 5534 [2022-01-18 09:21:57,262 INFO L226 Difference]: Without dead ends: 5534 [2022-01-18 09:21:57,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:21:57,263 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 662 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:57,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1725 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:57,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5534 states. [2022-01-18 09:21:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5534 to 4608. [2022-01-18 09:21:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4608 states, 4606 states have (on average 2.6587060356057317) internal successors, (12246), 4607 states have internal predecessors, (12246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 12246 transitions. [2022-01-18 09:21:57,312 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 12246 transitions. Word has length 129 [2022-01-18 09:21:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:57,312 INFO L470 AbstractCegarLoop]: Abstraction has 4608 states and 12246 transitions. [2022-01-18 09:21:57,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 12246 transitions. [2022-01-18 09:21:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:57,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:57,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:57,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 09:21:57,317 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 09:21:57,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:57,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1964375988, now seen corresponding path program 28 times [2022-01-18 09:21:57,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:57,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471090475] [2022-01-18 09:21:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:57,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:57,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:57,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471090475] [2022-01-18 09:21:57,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471090475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:57,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:57,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:21:57,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235901805] [2022-01-18 09:21:57,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:57,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:21:57,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:57,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:21:57,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:21:57,719 INFO L87 Difference]: Start difference. First operand 4608 states and 12246 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:21:58,772 INFO L93 Difference]: Finished difference Result 5365 states and 13853 transitions. [2022-01-18 09:21:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 09:21:58,772 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:21:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:21:58,779 INFO L225 Difference]: With dead ends: 5365 [2022-01-18 09:21:58,779 INFO L226 Difference]: Without dead ends: 5365 [2022-01-18 09:21:58,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=371, Invalid=1351, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 09:21:58,780 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 634 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:21:58,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 2103 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:21:58,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2022-01-18 09:21:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 4614. [2022-01-18 09:21:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 4612 states have (on average 2.6584995663486555) internal successors, (12261), 4613 states have internal predecessors, (12261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 12261 transitions. [2022-01-18 09:21:58,828 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 12261 transitions. Word has length 129 [2022-01-18 09:21:58,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:21:58,828 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 12261 transitions. [2022-01-18 09:21:58,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:21:58,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 12261 transitions. [2022-01-18 09:21:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:21:58,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:21:58,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:21:58,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 09:21:58,832 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 09:21:58,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:21:58,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1775281868, now seen corresponding path program 29 times [2022-01-18 09:21:58,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:21:58,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851526876] [2022-01-18 09:21:58,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:21:58,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:21:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:21:59,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:21:59,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:21:59,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851526876] [2022-01-18 09:21:59,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851526876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:21:59,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:21:59,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:21:59,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318005219] [2022-01-18 09:21:59,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:21:59,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:21:59,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:21:59,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:21:59,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:21:59,226 INFO L87 Difference]: Start difference. First operand 4614 states and 12261 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:00,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:00,122 INFO L93 Difference]: Finished difference Result 5902 states and 14963 transitions. [2022-01-18 09:22:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:22:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:00,129 INFO L225 Difference]: With dead ends: 5902 [2022-01-18 09:22:00,129 INFO L226 Difference]: Without dead ends: 5902 [2022-01-18 09:22:00,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:22:00,130 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 565 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:00,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1981 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2022-01-18 09:22:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 4616. [2022-01-18 09:22:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4616 states, 4614 states have (on average 2.658430862592111) internal successors, (12266), 4615 states have internal predecessors, (12266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4616 states to 4616 states and 12266 transitions. [2022-01-18 09:22:00,184 INFO L78 Accepts]: Start accepts. Automaton has 4616 states and 12266 transitions. Word has length 129 [2022-01-18 09:22:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:00,185 INFO L470 AbstractCegarLoop]: Abstraction has 4616 states and 12266 transitions. [2022-01-18 09:22:00,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4616 states and 12266 transitions. [2022-01-18 09:22:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:00,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:00,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:00,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 09:22:00,189 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 09:22:00,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:00,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1381285626, now seen corresponding path program 30 times [2022-01-18 09:22:00,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:00,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612093579] [2022-01-18 09:22:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:00,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:00,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:00,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612093579] [2022-01-18 09:22:00,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612093579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:00,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:00,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:22:00,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246150506] [2022-01-18 09:22:00,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:00,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:22:00,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:00,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:22:00,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:22:00,703 INFO L87 Difference]: Start difference. First operand 4616 states and 12266 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:01,874 INFO L93 Difference]: Finished difference Result 6193 states and 15603 transitions. [2022-01-18 09:22:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:22:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:01,883 INFO L225 Difference]: With dead ends: 6193 [2022-01-18 09:22:01,883 INFO L226 Difference]: Without dead ends: 6193 [2022-01-18 09:22:01,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=1021, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:22:01,884 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 655 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:01,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 2273 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:22:01,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-01-18 09:22:01,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 4614. [2022-01-18 09:22:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 4612 states have (on average 2.6584995663486555) internal successors, (12261), 4613 states have internal predecessors, (12261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 12261 transitions. [2022-01-18 09:22:01,941 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 12261 transitions. Word has length 129 [2022-01-18 09:22:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:01,941 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 12261 transitions. [2022-01-18 09:22:01,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 12261 transitions. [2022-01-18 09:22:01,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:01,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:01,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:01,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 09:22:01,946 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 09:22:01,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:01,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1427346542, now seen corresponding path program 31 times [2022-01-18 09:22:01,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:01,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095724515] [2022-01-18 09:22:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:01,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:02,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:02,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:02,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095724515] [2022-01-18 09:22:02,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095724515] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:02,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:02,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:22:02,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858418925] [2022-01-18 09:22:02,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:02,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:22:02,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:02,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:22:02,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:22:02,433 INFO L87 Difference]: Start difference. First operand 4614 states and 12261 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:03,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:03,375 INFO L93 Difference]: Finished difference Result 5934 states and 15053 transitions. [2022-01-18 09:22:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:22:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:03,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:03,382 INFO L225 Difference]: With dead ends: 5934 [2022-01-18 09:22:03,382 INFO L226 Difference]: Without dead ends: 5934 [2022-01-18 09:22:03,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 09:22:03,383 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 672 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:03,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 1820 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5934 states. [2022-01-18 09:22:03,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5934 to 4632. [2022-01-18 09:22:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4630 states have (on average 2.6578833693304538) internal successors, (12306), 4631 states have internal predecessors, (12306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 12306 transitions. [2022-01-18 09:22:03,436 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 12306 transitions. Word has length 129 [2022-01-18 09:22:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:03,437 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 12306 transitions. [2022-01-18 09:22:03,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 12306 transitions. [2022-01-18 09:22:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:03,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:03,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:03,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 09:22:03,441 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 09:22:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:03,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1328700236, now seen corresponding path program 32 times [2022-01-18 09:22:03,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:03,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958579786] [2022-01-18 09:22:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:03,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:03,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:03,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958579786] [2022-01-18 09:22:03,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958579786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:03,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:03,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:22:03,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814349904] [2022-01-18 09:22:03,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:03,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:22:03,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:03,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:22:03,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:22:03,642 INFO L87 Difference]: Start difference. First operand 4632 states and 12306 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:03,882 INFO L93 Difference]: Finished difference Result 5158 states and 13616 transitions. [2022-01-18 09:22:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:22:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:03,889 INFO L225 Difference]: With dead ends: 5158 [2022-01-18 09:22:03,889 INFO L226 Difference]: Without dead ends: 5158 [2022-01-18 09:22:03,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:03,889 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 582 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:03,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 925 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:22:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5158 states. [2022-01-18 09:22:03,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5158 to 4590. [2022-01-18 09:22:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4588 states have (on average 2.659328683522232) internal successors, (12201), 4589 states have internal predecessors, (12201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 12201 transitions. [2022-01-18 09:22:03,941 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 12201 transitions. Word has length 129 [2022-01-18 09:22:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:03,941 INFO L470 AbstractCegarLoop]: Abstraction has 4590 states and 12201 transitions. [2022-01-18 09:22:03,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 12201 transitions. [2022-01-18 09:22:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:03,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:03,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:03,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 09:22:03,946 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 09:22:03,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:03,946 INFO L85 PathProgramCache]: Analyzing trace with hash 771187926, now seen corresponding path program 33 times [2022-01-18 09:22:03,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:03,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444763202] [2022-01-18 09:22:03,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:03,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:04,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:04,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444763202] [2022-01-18 09:22:04,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444763202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:04,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:04,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:22:04,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251034289] [2022-01-18 09:22:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:04,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:22:04,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:22:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:22:04,454 INFO L87 Difference]: Start difference. First operand 4590 states and 12201 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:05,586 INFO L93 Difference]: Finished difference Result 6423 states and 16078 transitions. [2022-01-18 09:22:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 09:22:05,587 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:05,595 INFO L225 Difference]: With dead ends: 6423 [2022-01-18 09:22:05,595 INFO L226 Difference]: Without dead ends: 6423 [2022-01-18 09:22:05,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 09:22:05,596 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 705 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:05,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 2352 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:22:05,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6423 states. [2022-01-18 09:22:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6423 to 4602. [2022-01-18 09:22:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 2.658913043478261) internal successors, (12231), 4601 states have internal predecessors, (12231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 12231 transitions. [2022-01-18 09:22:05,672 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 12231 transitions. Word has length 129 [2022-01-18 09:22:05,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:05,672 INFO L470 AbstractCegarLoop]: Abstraction has 4602 states and 12231 transitions. [2022-01-18 09:22:05,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:05,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 12231 transitions. [2022-01-18 09:22:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:05,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:05,677 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] [2022-01-18 09:22:05,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 09:22:05,677 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 09:22:05,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash 729346996, now seen corresponding path program 34 times [2022-01-18 09:22:05,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:05,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348689872] [2022-01-18 09:22:05,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:05,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:06,163 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 09:22:06,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:06,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348689872] [2022-01-18 09:22:06,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348689872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:06,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:06,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-18 09:22:06,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539796607] [2022-01-18 09:22:06,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:06,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:22:06,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:06,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:22:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:22:06,164 INFO L87 Difference]: Start difference. First operand 4602 states and 12231 transitions. Second operand has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:07,323 INFO L93 Difference]: Finished difference Result 6075 states and 15371 transitions. [2022-01-18 09:22:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 09:22:07,323 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:07,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:07,332 INFO L225 Difference]: With dead ends: 6075 [2022-01-18 09:22:07,332 INFO L226 Difference]: Without dead ends: 6075 [2022-01-18 09:22:07,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:22:07,333 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 693 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:07,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 2309 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:22:07,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2022-01-18 09:22:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 4584. [2022-01-18 09:22:07,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4582 states have (on average 2.659537319947621) internal successors, (12186), 4583 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 12186 transitions. [2022-01-18 09:22:07,389 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 12186 transitions. Word has length 129 [2022-01-18 09:22:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:07,389 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 12186 transitions. [2022-01-18 09:22:07,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 12186 transitions. [2022-01-18 09:22:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:07,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:07,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:07,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 09:22:07,393 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 09:22:07,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:07,393 INFO L85 PathProgramCache]: Analyzing trace with hash -703755404, now seen corresponding path program 35 times [2022-01-18 09:22:07,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:07,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197206680] [2022-01-18 09:22:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:07,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:07,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:07,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197206680] [2022-01-18 09:22:07,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197206680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:07,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:07,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:22:07,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918975874] [2022-01-18 09:22:07,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:07,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:22:07,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:07,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:22:07,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:22:07,642 INFO L87 Difference]: Start difference. First operand 4584 states and 12186 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:07,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:07,982 INFO L93 Difference]: Finished difference Result 7071 states and 18218 transitions. [2022-01-18 09:22:07,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 09:22:07,982 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:07,991 INFO L225 Difference]: With dead ends: 7071 [2022-01-18 09:22:07,991 INFO L226 Difference]: Without dead ends: 7071 [2022-01-18 09:22:07,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-01-18 09:22:07,992 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 751 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:07,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 997 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:22:07,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2022-01-18 09:22:08,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 4566. [2022-01-18 09:22:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4566 states, 4564 states have (on average 2.65863277826468) internal successors, (12134), 4565 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:08,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 12134 transitions. [2022-01-18 09:22:08,046 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 12134 transitions. Word has length 129 [2022-01-18 09:22:08,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:08,046 INFO L470 AbstractCegarLoop]: Abstraction has 4566 states and 12134 transitions. [2022-01-18 09:22:08,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 12134 transitions. [2022-01-18 09:22:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:08,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:08,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:08,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 09:22:08,050 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 09:22:08,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1842155206, now seen corresponding path program 36 times [2022-01-18 09:22:08,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:08,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492654006] [2022-01-18 09:22:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:08,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:08,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492654006] [2022-01-18 09:22:08,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492654006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:08,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:08,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 09:22:08,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881668873] [2022-01-18 09:22:08,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:08,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 09:22:08,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:08,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 09:22:08,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:22:08,267 INFO L87 Difference]: Start difference. First operand 4566 states and 12134 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:08,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:08,644 INFO L93 Difference]: Finished difference Result 8309 states and 21233 transitions. [2022-01-18 09:22:08,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 09:22:08,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:08,655 INFO L225 Difference]: With dead ends: 8309 [2022-01-18 09:22:08,656 INFO L226 Difference]: Without dead ends: 8309 [2022-01-18 09:22:08,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2022-01-18 09:22:08,656 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 696 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:08,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 1130 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:22:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2022-01-18 09:22:08,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 4530. [2022-01-18 09:22:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 4528 states have (on average 2.6568021201413425) internal successors, (12030), 4529 states have internal predecessors, (12030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 12030 transitions. [2022-01-18 09:22:08,733 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 12030 transitions. Word has length 129 [2022-01-18 09:22:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:08,733 INFO L470 AbstractCegarLoop]: Abstraction has 4530 states and 12030 transitions. [2022-01-18 09:22:08,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 12 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 12030 transitions. [2022-01-18 09:22:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:08,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:08,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:08,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 09:22:08,739 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 09:22:08,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:08,739 INFO L85 PathProgramCache]: Analyzing trace with hash 712926230, now seen corresponding path program 37 times [2022-01-18 09:22:08,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:08,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917249625] [2022-01-18 09:22:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:08,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:09,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:09,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:09,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917249625] [2022-01-18 09:22:09,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917249625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:09,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:09,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-18 09:22:09,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538286242] [2022-01-18 09:22:09,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:09,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:22:09,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:09,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:22:09,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:09,201 INFO L87 Difference]: Start difference. First operand 4530 states and 12030 transitions. Second operand has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:10,463 INFO L93 Difference]: Finished difference Result 5309 states and 13658 transitions. [2022-01-18 09:22:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 09:22:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:10,470 INFO L225 Difference]: With dead ends: 5309 [2022-01-18 09:22:10,471 INFO L226 Difference]: Without dead ends: 5309 [2022-01-18 09:22:10,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 09:22:10,471 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 631 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:10,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [631 Valid, 2365 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:22:10,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2022-01-18 09:22:10,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 4524. [2022-01-18 09:22:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.6570101724900486) internal successors, (12015), 4523 states have internal predecessors, (12015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12015 transitions. [2022-01-18 09:22:10,532 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12015 transitions. Word has length 129 [2022-01-18 09:22:10,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:10,532 INFO L470 AbstractCegarLoop]: Abstraction has 4524 states and 12015 transitions. [2022-01-18 09:22:10,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12015 transitions. [2022-01-18 09:22:10,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:10,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:10,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:10,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 09:22:10,538 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 09:22:10,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:10,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1569035882, now seen corresponding path program 38 times [2022-01-18 09:22:10,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:10,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459589874] [2022-01-18 09:22:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:10,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:10,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:10,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:10,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459589874] [2022-01-18 09:22:10,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459589874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:10,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:10,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:22:10,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667213961] [2022-01-18 09:22:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:10,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:22:10,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:10,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:22:10,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:22:10,749 INFO L87 Difference]: Start difference. First operand 4524 states and 12015 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:11,040 INFO L93 Difference]: Finished difference Result 6074 states and 15810 transitions. [2022-01-18 09:22:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:22:11,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:11,048 INFO L225 Difference]: With dead ends: 6074 [2022-01-18 09:22:11,048 INFO L226 Difference]: Without dead ends: 6074 [2022-01-18 09:22:11,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:11,055 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 557 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:11,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 1176 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:22:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2022-01-18 09:22:11,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 4420. [2022-01-18 09:22:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4418 states have (on average 2.651199637845179) internal successors, (11713), 4419 states have internal predecessors, (11713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 11713 transitions. [2022-01-18 09:22:11,115 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 11713 transitions. Word has length 129 [2022-01-18 09:22:11,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:11,116 INFO L470 AbstractCegarLoop]: Abstraction has 4420 states and 11713 transitions. [2022-01-18 09:22:11,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 11713 transitions. [2022-01-18 09:22:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-18 09:22:11,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:11,121 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] [2022-01-18 09:22:11,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 09:22:11,121 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 09:22:11,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:11,121 INFO L85 PathProgramCache]: Analyzing trace with hash 871534738, now seen corresponding path program 39 times [2022-01-18 09:22:11,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:11,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065144596] [2022-01-18 09:22:11,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:11,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:11,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:11,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065144596] [2022-01-18 09:22:11,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065144596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:11,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:11,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:22:11,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427283949] [2022-01-18 09:22:11,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:11,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:22:11,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:11,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:22:11,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:22:11,340 INFO L87 Difference]: Start difference. First operand 4420 states and 11713 transitions. Second operand has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:11,569 INFO L93 Difference]: Finished difference Result 4171 states and 10549 transitions. [2022-01-18 09:22:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 09:22:11,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2022-01-18 09:22:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:11,574 INFO L225 Difference]: With dead ends: 4171 [2022-01-18 09:22:11,574 INFO L226 Difference]: Without dead ends: 4171 [2022-01-18 09:22:11,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:22:11,575 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 616 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:11,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 894 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:22:11,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4171 states. [2022-01-18 09:22:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4171 to 2799. [2022-01-18 09:22:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2798 states have (on average 2.5954253037884203) internal successors, (7262), 2798 states have internal predecessors, (7262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 7262 transitions. [2022-01-18 09:22:11,609 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 7262 transitions. Word has length 129 [2022-01-18 09:22:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:11,609 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 7262 transitions. [2022-01-18 09:22:11,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 7262 transitions. [2022-01-18 09:22:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:11,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:11,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:11,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 09:22:11,612 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:11,612 INFO L85 PathProgramCache]: Analyzing trace with hash -825993521, now seen corresponding path program 1 times [2022-01-18 09:22:11,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:11,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871562717] [2022-01-18 09:22:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:11,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:12,432 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 09:22:12,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:12,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871562717] [2022-01-18 09:22:12,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871562717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:12,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:12,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:22:12,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275809728] [2022-01-18 09:22:12,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:12,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:22:12,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:12,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:22:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:22:12,434 INFO L87 Difference]: Start difference. First operand 2799 states and 7262 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:14,671 INFO L93 Difference]: Finished difference Result 3089 states and 7840 transitions. [2022-01-18 09:22:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:22:14,671 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:14,674 INFO L225 Difference]: With dead ends: 3089 [2022-01-18 09:22:14,675 INFO L226 Difference]: Without dead ends: 2940 [2022-01-18 09:22:14,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:22:14,676 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 953 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:14,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 2441 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2022-01-18 09:22:14,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2833. [2022-01-18 09:22:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.593573446327684) internal successors, (7345), 2832 states have internal predecessors, (7345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7345 transitions. [2022-01-18 09:22:14,706 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7345 transitions. Word has length 137 [2022-01-18 09:22:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:14,706 INFO L470 AbstractCegarLoop]: Abstraction has 2833 states and 7345 transitions. [2022-01-18 09:22:14,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7345 transitions. [2022-01-18 09:22:14,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:14,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:14,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:14,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 09:22:14,709 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:14,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:14,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1613640533, now seen corresponding path program 2 times [2022-01-18 09:22:14,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:14,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360206476] [2022-01-18 09:22:14,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:14,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:15,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:15,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360206476] [2022-01-18 09:22:15,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360206476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:15,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:15,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:22:15,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732590301] [2022-01-18 09:22:15,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:15,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:22:15,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:15,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:22:15,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:22:15,641 INFO L87 Difference]: Start difference. First operand 2833 states and 7345 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:18,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:18,845 INFO L93 Difference]: Finished difference Result 3019 states and 7690 transitions. [2022-01-18 09:22:18,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 09:22:18,846 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:18,849 INFO L225 Difference]: With dead ends: 3019 [2022-01-18 09:22:18,849 INFO L226 Difference]: Without dead ends: 2881 [2022-01-18 09:22:18,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=749, Invalid=3807, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:22:18,851 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1251 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:18,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 2911 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:22:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2022-01-18 09:22:18,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2831. [2022-01-18 09:22:18,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2830 states have (on average 2.5936395759717317) internal successors, (7340), 2830 states have internal predecessors, (7340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 7340 transitions. [2022-01-18 09:22:18,876 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 7340 transitions. Word has length 137 [2022-01-18 09:22:18,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:18,876 INFO L470 AbstractCegarLoop]: Abstraction has 2831 states and 7340 transitions. [2022-01-18 09:22:18,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:18,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 7340 transitions. [2022-01-18 09:22:18,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:18,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:18,879 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:18,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 09:22:18,879 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:18,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash -466487063, now seen corresponding path program 3 times [2022-01-18 09:22:18,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:18,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872563380] [2022-01-18 09:22:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:18,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:19,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:19,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872563380] [2022-01-18 09:22:19,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872563380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:19,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:19,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:22:19,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015755319] [2022-01-18 09:22:19,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:19,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:22:19,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:22:19,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:22:19,755 INFO L87 Difference]: Start difference. First operand 2831 states and 7340 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:21,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:21,919 INFO L93 Difference]: Finished difference Result 3017 states and 7685 transitions. [2022-01-18 09:22:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:22:21,920 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:21,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:21,923 INFO L225 Difference]: With dead ends: 3017 [2022-01-18 09:22:21,923 INFO L226 Difference]: Without dead ends: 2869 [2022-01-18 09:22:21,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:22:21,924 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 1072 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:21,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 2512 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:21,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2022-01-18 09:22:21,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2827. [2022-01-18 09:22:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2826 states have (on average 2.5909412597310686) internal successors, (7322), 2826 states have internal predecessors, (7322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 7322 transitions. [2022-01-18 09:22:21,953 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 7322 transitions. Word has length 137 [2022-01-18 09:22:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:21,953 INFO L470 AbstractCegarLoop]: Abstraction has 2827 states and 7322 transitions. [2022-01-18 09:22:21,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 7322 transitions. [2022-01-18 09:22:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:21,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:21,956 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:21,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 09:22:21,956 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2075265717, now seen corresponding path program 4 times [2022-01-18 09:22:21,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:21,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609726263] [2022-01-18 09:22:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:21,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:22,947 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 09:22:22,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:22,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609726263] [2022-01-18 09:22:22,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609726263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:22,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:22,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:22:22,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713637909] [2022-01-18 09:22:22,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:22,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:22:22,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:22,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:22:22,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:22:22,948 INFO L87 Difference]: Start difference. First operand 2827 states and 7322 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:25,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:25,293 INFO L93 Difference]: Finished difference Result 3135 states and 7939 transitions. [2022-01-18 09:22:25,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:22:25,294 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:25,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:25,297 INFO L225 Difference]: With dead ends: 3135 [2022-01-18 09:22:25,297 INFO L226 Difference]: Without dead ends: 2941 [2022-01-18 09:22:25,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=523, Invalid=2447, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:22:25,299 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1296 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:25,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 2431 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:22:25,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2022-01-18 09:22:25,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2833. [2022-01-18 09:22:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.588629943502825) internal successors, (7331), 2832 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7331 transitions. [2022-01-18 09:22:25,324 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7331 transitions. Word has length 137 [2022-01-18 09:22:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:25,324 INFO L470 AbstractCegarLoop]: Abstraction has 2833 states and 7331 transitions. [2022-01-18 09:22:25,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7331 transitions. [2022-01-18 09:22:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:25,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:25,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:25,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 09:22:25,327 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1211899603, now seen corresponding path program 5 times [2022-01-18 09:22:25,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:25,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267271574] [2022-01-18 09:22:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:25,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:26,193 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 09:22:26,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:26,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267271574] [2022-01-18 09:22:26,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267271574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:26,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:26,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:22:26,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498007604] [2022-01-18 09:22:26,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:26,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:22:26,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:22:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:22:26,194 INFO L87 Difference]: Start difference. First operand 2833 states and 7331 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:28,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:28,513 INFO L93 Difference]: Finished difference Result 3083 states and 7817 transitions. [2022-01-18 09:22:28,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:22:28,514 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:28,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:28,518 INFO L225 Difference]: With dead ends: 3083 [2022-01-18 09:22:28,518 INFO L226 Difference]: Without dead ends: 2934 [2022-01-18 09:22:28,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:22:28,519 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 953 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:28,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 2603 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:28,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2022-01-18 09:22:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2835. [2022-01-18 09:22:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2834 states have (on average 2.587861679604799) internal successors, (7334), 2834 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:28,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 7334 transitions. [2022-01-18 09:22:28,544 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 7334 transitions. Word has length 137 [2022-01-18 09:22:28,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:28,544 INFO L470 AbstractCegarLoop]: Abstraction has 2835 states and 7334 transitions. [2022-01-18 09:22:28,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:28,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 7334 transitions. [2022-01-18 09:22:28,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:28,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:28,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:28,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 09:22:28,547 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:28,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:28,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1999546615, now seen corresponding path program 6 times [2022-01-18 09:22:28,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:28,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784387453] [2022-01-18 09:22:28,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:28,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:29,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784387453] [2022-01-18 09:22:29,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784387453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:29,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:29,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:22:29,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146605765] [2022-01-18 09:22:29,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:29,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:22:29,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:22:29,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:22:29,305 INFO L87 Difference]: Start difference. First operand 2835 states and 7334 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:31,526 INFO L93 Difference]: Finished difference Result 3009 states and 7661 transitions. [2022-01-18 09:22:31,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:22:31,527 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:31,530 INFO L225 Difference]: With dead ends: 3009 [2022-01-18 09:22:31,530 INFO L226 Difference]: Without dead ends: 2847 [2022-01-18 09:22:31,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:22:31,530 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1156 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 1535 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 1633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:31,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 2590 Invalid, 1633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2022-01-18 09:22:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2809. [2022-01-18 09:22:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2808 states have (on average 2.5883190883190883) internal successors, (7268), 2808 states have internal predecessors, (7268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 7268 transitions. [2022-01-18 09:22:31,554 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 7268 transitions. Word has length 137 [2022-01-18 09:22:31,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:31,554 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 7268 transitions. [2022-01-18 09:22:31,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 7268 transitions. [2022-01-18 09:22:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:31,556 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:31,557 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:31,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 09:22:31,557 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1814133711, now seen corresponding path program 7 times [2022-01-18 09:22:31,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:31,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559953203] [2022-01-18 09:22:31,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:31,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:32,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:32,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:32,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559953203] [2022-01-18 09:22:32,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559953203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:32,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:32,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:22:32,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493230456] [2022-01-18 09:22:32,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:32,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:22:32,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:32,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:22:32,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:22:32,384 INFO L87 Difference]: Start difference. First operand 2809 states and 7268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:34,566 INFO L93 Difference]: Finished difference Result 3237 states and 8191 transitions. [2022-01-18 09:22:34,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:22:34,566 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:34,570 INFO L225 Difference]: With dead ends: 3237 [2022-01-18 09:22:34,570 INFO L226 Difference]: Without dead ends: 3088 [2022-01-18 09:22:34,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:22:34,571 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 1238 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:34,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 2408 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:22:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2022-01-18 09:22:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 2875. [2022-01-18 09:22:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2874 states have (on average 2.5953375086986776) internal successors, (7459), 2874 states have internal predecessors, (7459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 7459 transitions. [2022-01-18 09:22:34,597 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 7459 transitions. Word has length 137 [2022-01-18 09:22:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:34,597 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 7459 transitions. [2022-01-18 09:22:34,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 7459 transitions. [2022-01-18 09:22:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:34,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:34,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:34,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 09:22:34,599 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:34,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:34,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1026486699, now seen corresponding path program 8 times [2022-01-18 09:22:34,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:34,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567578278] [2022-01-18 09:22:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:34,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:35,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:35,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567578278] [2022-01-18 09:22:35,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567578278] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:35,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:35,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:22:35,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808254457] [2022-01-18 09:22:35,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:35,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:22:35,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:35,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:22:35,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:22:35,381 INFO L87 Difference]: Start difference. First operand 2875 states and 7459 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:37,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:37,672 INFO L93 Difference]: Finished difference Result 3167 states and 8041 transitions. [2022-01-18 09:22:37,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:22:37,673 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:37,676 INFO L225 Difference]: With dead ends: 3167 [2022-01-18 09:22:37,676 INFO L226 Difference]: Without dead ends: 3029 [2022-01-18 09:22:37,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:22:37,677 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 913 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:37,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 2583 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2022-01-18 09:22:37,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2873. [2022-01-18 09:22:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2872 states have (on average 2.5954038997214486) internal successors, (7454), 2872 states have internal predecessors, (7454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 7454 transitions. [2022-01-18 09:22:37,702 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 7454 transitions. Word has length 137 [2022-01-18 09:22:37,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:37,702 INFO L470 AbstractCegarLoop]: Abstraction has 2873 states and 7454 transitions. [2022-01-18 09:22:37,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 7454 transitions. [2022-01-18 09:22:37,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:37,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:37,704 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:37,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 09:22:37,704 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:37,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:37,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2121327127, now seen corresponding path program 9 times [2022-01-18 09:22:37,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:37,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969369590] [2022-01-18 09:22:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:37,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:38,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:38,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969369590] [2022-01-18 09:22:38,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969369590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:38,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:38,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:22:38,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019315277] [2022-01-18 09:22:38,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:38,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:22:38,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:38,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:22:38,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:22:38,509 INFO L87 Difference]: Start difference. First operand 2873 states and 7454 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:40,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:40,706 INFO L93 Difference]: Finished difference Result 3179 states and 8059 transitions. [2022-01-18 09:22:40,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:22:40,706 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:40,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:40,710 INFO L225 Difference]: With dead ends: 3179 [2022-01-18 09:22:40,710 INFO L226 Difference]: Without dead ends: 3031 [2022-01-18 09:22:40,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:22:40,711 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 1025 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:40,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 2583 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:40,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-01-18 09:22:40,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 2865. [2022-01-18 09:22:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.5953212290502794) internal successors, (7433), 2864 states have internal predecessors, (7433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 7433 transitions. [2022-01-18 09:22:40,736 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 7433 transitions. Word has length 137 [2022-01-18 09:22:40,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:40,736 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 7433 transitions. [2022-01-18 09:22:40,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 7433 transitions. [2022-01-18 09:22:40,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:40,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:40,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:40,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 09:22:40,739 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:40,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2009858063, now seen corresponding path program 10 times [2022-01-18 09:22:40,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:40,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278086292] [2022-01-18 09:22:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:40,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:41,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:41,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278086292] [2022-01-18 09:22:41,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278086292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:41,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:41,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:22:41,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460326964] [2022-01-18 09:22:41,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:41,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:22:41,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:41,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:22:41,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:22:41,501 INFO L87 Difference]: Start difference. First operand 2865 states and 7433 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:43,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:43,667 INFO L93 Difference]: Finished difference Result 3599 states and 9134 transitions. [2022-01-18 09:22:43,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:22:43,667 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:43,671 INFO L225 Difference]: With dead ends: 3599 [2022-01-18 09:22:43,671 INFO L226 Difference]: Without dead ends: 3450 [2022-01-18 09:22:43,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:22:43,672 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1285 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:43,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1285 Valid, 2601 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:22:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2022-01-18 09:22:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 2949. [2022-01-18 09:22:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 2.6004070556309364) internal successors, (7666), 2948 states have internal predecessors, (7666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 7666 transitions. [2022-01-18 09:22:43,704 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 7666 transitions. Word has length 137 [2022-01-18 09:22:43,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:43,704 INFO L470 AbstractCegarLoop]: Abstraction has 2949 states and 7666 transitions. [2022-01-18 09:22:43,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 7666 transitions. [2022-01-18 09:22:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:43,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:43,706 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:43,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 09:22:43,707 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:43,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:43,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1228084955, now seen corresponding path program 11 times [2022-01-18 09:22:43,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:43,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867032261] [2022-01-18 09:22:43,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:43,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:44,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:44,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867032261] [2022-01-18 09:22:44,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867032261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:44,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:44,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:22:44,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818355013] [2022-01-18 09:22:44,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:44,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:22:44,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:22:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:22:44,597 INFO L87 Difference]: Start difference. First operand 2949 states and 7666 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:47,052 INFO L93 Difference]: Finished difference Result 3813 states and 9700 transitions. [2022-01-18 09:22:47,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:22:47,052 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:47,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:47,057 INFO L225 Difference]: With dead ends: 3813 [2022-01-18 09:22:47,057 INFO L226 Difference]: Without dead ends: 3679 [2022-01-18 09:22:47,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=566, Invalid=2740, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:22:47,058 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1135 mSDsluCounter, 3219 mSDsCounter, 0 mSdLazyCounter, 1767 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:47,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 3312 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1767 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:22:47,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3679 states. [2022-01-18 09:22:47,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3679 to 3145. [2022-01-18 09:22:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3144 states have (on average 2.594147582697201) internal successors, (8156), 3144 states have internal predecessors, (8156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 8156 transitions. [2022-01-18 09:22:47,096 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 8156 transitions. Word has length 137 [2022-01-18 09:22:47,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:47,096 INFO L470 AbstractCegarLoop]: Abstraction has 3145 states and 8156 transitions. [2022-01-18 09:22:47,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 8156 transitions. [2022-01-18 09:22:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:47,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:47,100 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:47,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 09:22:47,100 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1342087397, now seen corresponding path program 12 times [2022-01-18 09:22:47,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:47,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872591973] [2022-01-18 09:22:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:47,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:48,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:48,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872591973] [2022-01-18 09:22:48,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872591973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:48,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:48,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:22:48,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888614774] [2022-01-18 09:22:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:48,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:22:48,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:22:48,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:22:48,037 INFO L87 Difference]: Start difference. First operand 3145 states and 8156 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:50,958 INFO L93 Difference]: Finished difference Result 4077 states and 10290 transitions. [2022-01-18 09:22:50,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 09:22:50,958 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:50,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:50,962 INFO L225 Difference]: With dead ends: 4077 [2022-01-18 09:22:50,962 INFO L226 Difference]: Without dead ends: 3424 [2022-01-18 09:22:50,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=782, Invalid=3910, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 09:22:50,963 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 1805 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:50,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 4166 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:22:50,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2022-01-18 09:22:50,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 2879. [2022-01-18 09:22:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2878 states have (on average 2.592425295343989) internal successors, (7461), 2878 states have internal predecessors, (7461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 7461 transitions. [2022-01-18 09:22:50,994 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 7461 transitions. Word has length 137 [2022-01-18 09:22:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:50,994 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 7461 transitions. [2022-01-18 09:22:50,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 7461 transitions. [2022-01-18 09:22:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:50,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:50,997 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:50,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 09:22:50,997 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:50,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash 791748333, now seen corresponding path program 13 times [2022-01-18 09:22:50,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:50,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430964954] [2022-01-18 09:22:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:50,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:51,920 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 09:22:51,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:51,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430964954] [2022-01-18 09:22:51,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430964954] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:51,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:51,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:22:51,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988806949] [2022-01-18 09:22:51,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:51,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:22:51,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:51,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:22:51,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:22:51,922 INFO L87 Difference]: Start difference. First operand 2879 states and 7461 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:54,659 INFO L93 Difference]: Finished difference Result 3265 states and 8243 transitions. [2022-01-18 09:22:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:22:54,659 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:54,663 INFO L225 Difference]: With dead ends: 3265 [2022-01-18 09:22:54,663 INFO L226 Difference]: Without dead ends: 3116 [2022-01-18 09:22:54,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=752, Invalid=3538, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:22:54,664 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1265 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:54,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1265 Valid, 2806 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:22:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-18 09:22:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 2881. [2022-01-18 09:22:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2880 states have (on average 2.591666666666667) internal successors, (7464), 2880 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 7464 transitions. [2022-01-18 09:22:54,693 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 7464 transitions. Word has length 137 [2022-01-18 09:22:54,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:54,693 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 7464 transitions. [2022-01-18 09:22:54,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:54,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 7464 transitions. [2022-01-18 09:22:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:54,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:54,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:54,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 09:22:54,696 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:54,697 INFO L85 PathProgramCache]: Analyzing trace with hash -378741397, now seen corresponding path program 14 times [2022-01-18 09:22:54,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:54,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724007836] [2022-01-18 09:22:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:54,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:55,493 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 09:22:55,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:55,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724007836] [2022-01-18 09:22:55,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724007836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:55,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:55,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:22:55,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253363561] [2022-01-18 09:22:55,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:55,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:22:55,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:22:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:22:55,494 INFO L87 Difference]: Start difference. First operand 2881 states and 7464 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:57,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:22:57,793 INFO L93 Difference]: Finished difference Result 3193 states and 8090 transitions. [2022-01-18 09:22:57,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:22:57,793 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:22:57,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:22:57,796 INFO L225 Difference]: With dead ends: 3193 [2022-01-18 09:22:57,796 INFO L226 Difference]: Without dead ends: 3055 [2022-01-18 09:22:57,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=558, Invalid=2522, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:22:57,800 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 998 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:22:57,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [998 Valid, 2464 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:22:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2022-01-18 09:22:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2879. [2022-01-18 09:22:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2878 states have (on average 2.592077831827658) internal successors, (7460), 2878 states have internal predecessors, (7460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:57,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 7460 transitions. [2022-01-18 09:22:57,824 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 7460 transitions. Word has length 137 [2022-01-18 09:22:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:22:57,824 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 7460 transitions. [2022-01-18 09:22:57,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:22:57,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 7460 transitions. [2022-01-18 09:22:57,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:22:57,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:22:57,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:22:57,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 09:22:57,827 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:22:57,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:22:57,830 INFO L85 PathProgramCache]: Analyzing trace with hash 391236999, now seen corresponding path program 15 times [2022-01-18 09:22:57,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:22:57,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990055751] [2022-01-18 09:22:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:22:57,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:22:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:22:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:22:58,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:22:58,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990055751] [2022-01-18 09:22:58,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990055751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:22:58,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:22:58,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:22:58,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480909359] [2022-01-18 09:22:58,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:22:58,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:22:58,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:22:58,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:22:58,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:22:58,717 INFO L87 Difference]: Start difference. First operand 2879 states and 7460 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:01,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:01,122 INFO L93 Difference]: Finished difference Result 3491 states and 8836 transitions. [2022-01-18 09:23:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:23:01,123 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:01,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:01,127 INFO L225 Difference]: With dead ends: 3491 [2022-01-18 09:23:01,127 INFO L226 Difference]: Without dead ends: 3357 [2022-01-18 09:23:01,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=593, Invalid=2829, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 09:23:01,128 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1266 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 3291 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:01,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 3291 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2022-01-18 09:23:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3089. [2022-01-18 09:23:01,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3088 states have (on average 2.5835492227979273) internal successors, (7978), 3088 states have internal predecessors, (7978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 7978 transitions. [2022-01-18 09:23:01,158 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 7978 transitions. Word has length 137 [2022-01-18 09:23:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:01,159 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 7978 transitions. [2022-01-18 09:23:01,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 7978 transitions. [2022-01-18 09:23:01,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:01,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:01,162 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:01,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 09:23:01,162 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:01,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1783247915, now seen corresponding path program 16 times [2022-01-18 09:23:01,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:01,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987749699] [2022-01-18 09:23:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:01,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:02,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:02,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987749699] [2022-01-18 09:23:02,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987749699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:02,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:02,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:23:02,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136494257] [2022-01-18 09:23:02,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:02,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:23:02,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:02,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:23:02,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:23:02,207 INFO L87 Difference]: Start difference. First operand 3089 states and 7978 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:05,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:05,353 INFO L93 Difference]: Finished difference Result 3755 states and 9426 transitions. [2022-01-18 09:23:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 09:23:05,353 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:05,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:05,358 INFO L225 Difference]: With dead ends: 3755 [2022-01-18 09:23:05,358 INFO L226 Difference]: Without dead ends: 3172 [2022-01-18 09:23:05,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=856, Invalid=4400, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 09:23:05,360 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 1984 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1984 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:05,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1984 Valid, 3395 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:05,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-01-18 09:23:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2893. [2022-01-18 09:23:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.5843706777316737) internal successors, (7474), 2892 states have internal predecessors, (7474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:05,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7474 transitions. [2022-01-18 09:23:05,391 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7474 transitions. Word has length 137 [2022-01-18 09:23:05,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:05,391 INFO L470 AbstractCegarLoop]: Abstraction has 2893 states and 7474 transitions. [2022-01-18 09:23:05,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:05,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7474 transitions. [2022-01-18 09:23:05,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:05,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:05,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:05,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 09:23:05,393 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash 629037801, now seen corresponding path program 17 times [2022-01-18 09:23:05,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:05,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480916825] [2022-01-18 09:23:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:05,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:06,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:06,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480916825] [2022-01-18 09:23:06,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480916825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:06,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:06,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:23:06,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763639323] [2022-01-18 09:23:06,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:06,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:23:06,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:06,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:23:06,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:23:06,269 INFO L87 Difference]: Start difference. First operand 2893 states and 7474 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:08,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:08,536 INFO L93 Difference]: Finished difference Result 3205 states and 8100 transitions. [2022-01-18 09:23:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:23:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:08,540 INFO L225 Difference]: With dead ends: 3205 [2022-01-18 09:23:08,540 INFO L226 Difference]: Without dead ends: 3041 [2022-01-18 09:23:08,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=587, Invalid=2719, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:23:08,541 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1088 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:08,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2542 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:23:08,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2022-01-18 09:23:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 2865. [2022-01-18 09:23:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.5904329608938546) internal successors, (7419), 2864 states have internal predecessors, (7419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:08,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 7419 transitions. [2022-01-18 09:23:08,568 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 7419 transitions. Word has length 137 [2022-01-18 09:23:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:08,568 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 7419 transitions. [2022-01-18 09:23:08,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 7419 transitions. [2022-01-18 09:23:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:08,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:08,571 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:08,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 09:23:08,571 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:08,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:08,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1000873403, now seen corresponding path program 18 times [2022-01-18 09:23:08,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:08,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127686532] [2022-01-18 09:23:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:08,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:09,545 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 09:23:09,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:09,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127686532] [2022-01-18 09:23:09,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127686532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:09,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:09,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:23:09,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094036771] [2022-01-18 09:23:09,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:09,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:23:09,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:09,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:23:09,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:23:09,548 INFO L87 Difference]: Start difference. First operand 2865 states and 7419 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:12,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:12,382 INFO L93 Difference]: Finished difference Result 3471 states and 8782 transitions. [2022-01-18 09:23:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:23:12,382 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:12,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:12,386 INFO L225 Difference]: With dead ends: 3471 [2022-01-18 09:23:12,386 INFO L226 Difference]: Without dead ends: 3337 [2022-01-18 09:23:12,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=699, Invalid=3461, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 09:23:12,387 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1478 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:12,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 3498 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:23:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3337 states. [2022-01-18 09:23:12,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3337 to 3131. [2022-01-18 09:23:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 2.576038338658147) internal successors, (8063), 3130 states have internal predecessors, (8063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 8063 transitions. [2022-01-18 09:23:12,418 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 8063 transitions. Word has length 137 [2022-01-18 09:23:12,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:12,418 INFO L470 AbstractCegarLoop]: Abstraction has 3131 states and 8063 transitions. [2022-01-18 09:23:12,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:12,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 8063 transitions. [2022-01-18 09:23:12,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:12,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:12,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:12,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 09:23:12,421 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:12,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:12,421 INFO L85 PathProgramCache]: Analyzing trace with hash 391137513, now seen corresponding path program 19 times [2022-01-18 09:23:12,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:12,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170048297] [2022-01-18 09:23:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:12,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:13,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:13,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170048297] [2022-01-18 09:23:13,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170048297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:13,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:13,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:23:13,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544351605] [2022-01-18 09:23:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:13,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:23:13,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:13,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:23:13,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:23:13,463 INFO L87 Difference]: Start difference. First operand 3131 states and 8063 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:16,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:16,754 INFO L93 Difference]: Finished difference Result 3735 states and 9372 transitions. [2022-01-18 09:23:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 09:23:16,755 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:16,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:16,759 INFO L225 Difference]: With dead ends: 3735 [2022-01-18 09:23:16,759 INFO L226 Difference]: Without dead ends: 3152 [2022-01-18 09:23:16,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=853, Invalid=4259, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 09:23:16,760 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 1735 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:16,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1735 Valid, 3935 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:23:16,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2022-01-18 09:23:16,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 2935. [2022-01-18 09:23:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2934 states have (on average 2.576346284935242) internal successors, (7559), 2934 states have internal predecessors, (7559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:16,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 7559 transitions. [2022-01-18 09:23:16,787 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 7559 transitions. Word has length 137 [2022-01-18 09:23:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:16,787 INFO L470 AbstractCegarLoop]: Abstraction has 2935 states and 7559 transitions. [2022-01-18 09:23:16,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:16,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 7559 transitions. [2022-01-18 09:23:16,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:16,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:16,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:16,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 09:23:16,790 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:16,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:16,790 INFO L85 PathProgramCache]: Analyzing trace with hash -763072601, now seen corresponding path program 20 times [2022-01-18 09:23:16,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:16,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343482906] [2022-01-18 09:23:16,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:16,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:17,882 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 09:23:17,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:17,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343482906] [2022-01-18 09:23:17,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343482906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:17,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:17,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:23:17,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554769735] [2022-01-18 09:23:17,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:17,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:23:17,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:17,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:23:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:23:17,883 INFO L87 Difference]: Start difference. First operand 2935 states and 7559 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:20,091 INFO L93 Difference]: Finished difference Result 3187 states and 8049 transitions. [2022-01-18 09:23:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:23:20,091 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:20,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:20,095 INFO L225 Difference]: With dead ends: 3187 [2022-01-18 09:23:20,095 INFO L226 Difference]: Without dead ends: 3037 [2022-01-18 09:23:20,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=564, Invalid=2628, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:23:20,096 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1145 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:20,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2579 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:20,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-01-18 09:23:20,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2921. [2022-01-18 09:23:20,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2920 states have (on average 2.5791095890410958) internal successors, (7531), 2920 states have internal predecessors, (7531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:20,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 7531 transitions. [2022-01-18 09:23:20,123 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 7531 transitions. Word has length 137 [2022-01-18 09:23:20,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:20,123 INFO L470 AbstractCegarLoop]: Abstraction has 2921 states and 7531 transitions. [2022-01-18 09:23:20,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:20,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 7531 transitions. [2022-01-18 09:23:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:20,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:20,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:20,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 09:23:20,126 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:20,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:20,126 INFO L85 PathProgramCache]: Analyzing trace with hash 13023233, now seen corresponding path program 21 times [2022-01-18 09:23:20,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:20,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145574750] [2022-01-18 09:23:20,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:20,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:20,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:20,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145574750] [2022-01-18 09:23:20,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145574750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:20,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:20,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:23:20,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37613156] [2022-01-18 09:23:20,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:20,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:23:20,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:20,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:23:20,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:23:20,969 INFO L87 Difference]: Start difference. First operand 2921 states and 7531 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:23,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:23,243 INFO L93 Difference]: Finished difference Result 3187 states and 8044 transitions. [2022-01-18 09:23:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:23:23,243 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:23,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:23,247 INFO L225 Difference]: With dead ends: 3187 [2022-01-18 09:23:23,247 INFO L226 Difference]: Without dead ends: 2961 [2022-01-18 09:23:23,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:23:23,247 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1139 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:23,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 2848 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:23,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-01-18 09:23:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2837. [2022-01-18 09:23:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2836 states have (on average 2.5677009873060648) internal successors, (7282), 2836 states have internal predecessors, (7282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 7282 transitions. [2022-01-18 09:23:23,272 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 7282 transitions. Word has length 137 [2022-01-18 09:23:23,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:23,273 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 7282 transitions. [2022-01-18 09:23:23,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:23,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 7282 transitions. [2022-01-18 09:23:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:23,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:23,275 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:23,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 09:23:23,275 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash -302778101, now seen corresponding path program 22 times [2022-01-18 09:23:23,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:23,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342613977] [2022-01-18 09:23:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:23,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:24,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:24,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342613977] [2022-01-18 09:23:24,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342613977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:24,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:24,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:23:24,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355048090] [2022-01-18 09:23:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:24,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:23:24,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:24,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:23:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:23:24,201 INFO L87 Difference]: Start difference. First operand 2837 states and 7282 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:26,699 INFO L93 Difference]: Finished difference Result 3105 states and 7813 transitions. [2022-01-18 09:23:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:23:26,699 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:26,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:26,703 INFO L225 Difference]: With dead ends: 3105 [2022-01-18 09:23:26,703 INFO L226 Difference]: Without dead ends: 2911 [2022-01-18 09:23:26,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:23:26,703 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1208 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:26,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 2895 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2022-01-18 09:23:26,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2837. [2022-01-18 09:23:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2836 states have (on average 2.5624118476727786) internal successors, (7267), 2836 states have internal predecessors, (7267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:26,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 7267 transitions. [2022-01-18 09:23:26,728 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 7267 transitions. Word has length 137 [2022-01-18 09:23:26,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:26,728 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 7267 transitions. [2022-01-18 09:23:26,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 7267 transitions. [2022-01-18 09:23:26,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:26,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:26,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:26,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 09:23:26,731 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:26,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:26,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1980258935, now seen corresponding path program 23 times [2022-01-18 09:23:26,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:26,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486027706] [2022-01-18 09:23:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:26,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:27,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:27,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:27,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486027706] [2022-01-18 09:23:27,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486027706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:27,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:27,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:23:27,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573340441] [2022-01-18 09:23:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:27,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:23:27,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:27,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:23:27,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:23:27,420 INFO L87 Difference]: Start difference. First operand 2837 states and 7267 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:29,882 INFO L93 Difference]: Finished difference Result 3403 states and 8590 transitions. [2022-01-18 09:23:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:23:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:29,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:29,886 INFO L225 Difference]: With dead ends: 3403 [2022-01-18 09:23:29,886 INFO L226 Difference]: Without dead ends: 3254 [2022-01-18 09:23:29,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=549, Invalid=2531, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:23:29,887 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1296 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:29,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 3134 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:29,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2022-01-18 09:23:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 2907. [2022-01-18 09:23:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2906 states have (on average 2.5664143152099106) internal successors, (7458), 2906 states have internal predecessors, (7458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:29,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 7458 transitions. [2022-01-18 09:23:29,915 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 7458 transitions. Word has length 137 [2022-01-18 09:23:29,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:29,915 INFO L470 AbstractCegarLoop]: Abstraction has 2907 states and 7458 transitions. [2022-01-18 09:23:29,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 7458 transitions. [2022-01-18 09:23:29,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:29,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:29,918 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:29,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 09:23:29,918 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:29,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1082415053, now seen corresponding path program 24 times [2022-01-18 09:23:29,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:29,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700393175] [2022-01-18 09:23:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:29,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:30,786 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 09:23:30,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:30,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700393175] [2022-01-18 09:23:30,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700393175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:30,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:30,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:23:30,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253715200] [2022-01-18 09:23:30,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:30,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:23:30,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:30,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:23:30,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:23:30,787 INFO L87 Difference]: Start difference. First operand 2907 states and 7458 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:33,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:33,451 INFO L93 Difference]: Finished difference Result 3340 states and 8454 transitions. [2022-01-18 09:23:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:23:33,451 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:33,455 INFO L225 Difference]: With dead ends: 3340 [2022-01-18 09:23:33,455 INFO L226 Difference]: Without dead ends: 3206 [2022-01-18 09:23:33,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=588, Invalid=2834, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 09:23:33,456 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 1497 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:33,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 3033 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2022-01-18 09:23:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3103. [2022-01-18 09:23:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 3102 states have (on average 2.5622179239200515) internal successors, (7948), 3102 states have internal predecessors, (7948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 7948 transitions. [2022-01-18 09:23:33,486 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 7948 transitions. Word has length 137 [2022-01-18 09:23:33,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:33,486 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 7948 transitions. [2022-01-18 09:23:33,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:33,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 7948 transitions. [2022-01-18 09:23:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:33,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:33,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:33,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 09:23:33,489 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:33,489 INFO L85 PathProgramCache]: Analyzing trace with hash -642379891, now seen corresponding path program 25 times [2022-01-18 09:23:33,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:33,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954623860] [2022-01-18 09:23:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:33,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:34,525 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 09:23:34,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:34,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954623860] [2022-01-18 09:23:34,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954623860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:34,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:34,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:23:34,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596905825] [2022-01-18 09:23:34,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:34,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:23:34,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:34,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:23:34,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:23:34,526 INFO L87 Difference]: Start difference. First operand 3103 states and 7948 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:37,768 INFO L93 Difference]: Finished difference Result 3604 states and 9044 transitions. [2022-01-18 09:23:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 09:23:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:37,772 INFO L225 Difference]: With dead ends: 3604 [2022-01-18 09:23:37,772 INFO L226 Difference]: Without dead ends: 2711 [2022-01-18 09:23:37,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=821, Invalid=4291, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 09:23:37,773 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 1816 mSDsluCounter, 3641 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 3750 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:37,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1816 Valid, 3750 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:37,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-01-18 09:23:37,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2597. [2022-01-18 09:23:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2596 states have (on average 2.5392912172573188) internal successors, (6592), 2596 states have internal predecessors, (6592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 6592 transitions. [2022-01-18 09:23:37,795 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 6592 transitions. Word has length 137 [2022-01-18 09:23:37,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:37,795 INFO L470 AbstractCegarLoop]: Abstraction has 2597 states and 6592 transitions. [2022-01-18 09:23:37,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 6592 transitions. [2022-01-18 09:23:37,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:37,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:37,798 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:37,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 09:23:37,798 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:37,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:37,798 INFO L85 PathProgramCache]: Analyzing trace with hash 590525933, now seen corresponding path program 26 times [2022-01-18 09:23:37,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:37,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940570597] [2022-01-18 09:23:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:37,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:38,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:38,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940570597] [2022-01-18 09:23:38,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940570597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:38,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:38,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:23:38,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497285419] [2022-01-18 09:23:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:38,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:23:38,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:38,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:23:38,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:23:38,524 INFO L87 Difference]: Start difference. First operand 2597 states and 6592 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:40,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:40,921 INFO L93 Difference]: Finished difference Result 2879 states and 7154 transitions. [2022-01-18 09:23:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 09:23:40,921 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:40,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:40,924 INFO L225 Difference]: With dead ends: 2879 [2022-01-18 09:23:40,924 INFO L226 Difference]: Without dead ends: 2685 [2022-01-18 09:23:40,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=571, Invalid=2621, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:23:40,925 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 1140 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:40,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 2791 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-01-18 09:23:40,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2603. [2022-01-18 09:23:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2602 states have (on average 2.536894696387394) internal successors, (6601), 2602 states have internal predecessors, (6601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 6601 transitions. [2022-01-18 09:23:40,952 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 6601 transitions. Word has length 137 [2022-01-18 09:23:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:40,952 INFO L470 AbstractCegarLoop]: Abstraction has 2603 states and 6601 transitions. [2022-01-18 09:23:40,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 6601 transitions. [2022-01-18 09:23:40,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:40,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:40,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:40,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 09:23:40,954 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:40,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1824297619, now seen corresponding path program 27 times [2022-01-18 09:23:40,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:40,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893367859] [2022-01-18 09:23:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:40,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:41,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:41,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893367859] [2022-01-18 09:23:41,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893367859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:41,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:41,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:23:41,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881810873] [2022-01-18 09:23:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:41,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:23:41,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:41,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:23:41,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:23:41,742 INFO L87 Difference]: Start difference. First operand 2603 states and 6601 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:44,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:44,054 INFO L93 Difference]: Finished difference Result 2823 states and 7024 transitions. [2022-01-18 09:23:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:23:44,054 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:44,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:44,057 INFO L225 Difference]: With dead ends: 2823 [2022-01-18 09:23:44,057 INFO L226 Difference]: Without dead ends: 2674 [2022-01-18 09:23:44,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=572, Invalid=2620, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:23:44,058 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 989 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:44,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [989 Valid, 2647 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-01-18 09:23:44,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2605. [2022-01-18 09:23:44,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2604 states have (on average 2.536098310291859) internal successors, (6604), 2604 states have internal predecessors, (6604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 6604 transitions. [2022-01-18 09:23:44,080 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 6604 transitions. Word has length 137 [2022-01-18 09:23:44,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:44,080 INFO L470 AbstractCegarLoop]: Abstraction has 2605 states and 6604 transitions. [2022-01-18 09:23:44,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 6604 transitions. [2022-01-18 09:23:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:44,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:44,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:44,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 09:23:44,083 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:44,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:44,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1683022665, now seen corresponding path program 28 times [2022-01-18 09:23:44,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:44,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231578964] [2022-01-18 09:23:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:44,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:44,773 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 09:23:44,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:44,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231578964] [2022-01-18 09:23:44,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231578964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:44,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:44,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:23:44,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962439664] [2022-01-18 09:23:44,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:44,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:23:44,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:44,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:23:44,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:23:44,774 INFO L87 Difference]: Start difference. First operand 2605 states and 6604 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:47,103 INFO L93 Difference]: Finished difference Result 2749 states and 6868 transitions. [2022-01-18 09:23:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:23:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:47,107 INFO L225 Difference]: With dead ends: 2749 [2022-01-18 09:23:47,107 INFO L226 Difference]: Without dead ends: 2605 [2022-01-18 09:23:47,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=544, Invalid=2426, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:23:47,111 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 1053 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:47,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 2995 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2022-01-18 09:23:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2597. [2022-01-18 09:23:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2596 states have (on average 2.538135593220339) internal successors, (6589), 2596 states have internal predecessors, (6589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 6589 transitions. [2022-01-18 09:23:47,135 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 6589 transitions. Word has length 137 [2022-01-18 09:23:47,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:47,135 INFO L470 AbstractCegarLoop]: Abstraction has 2597 states and 6589 transitions. [2022-01-18 09:23:47,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 6589 transitions. [2022-01-18 09:23:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:47,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:47,138 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:47,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 09:23:47,138 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 521300717, now seen corresponding path program 29 times [2022-01-18 09:23:47,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:47,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79495037] [2022-01-18 09:23:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:47,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:47,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:47,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79495037] [2022-01-18 09:23:47,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79495037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:47,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:47,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:23:47,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042265611] [2022-01-18 09:23:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:47,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:23:47,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:23:47,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:23:47,842 INFO L87 Difference]: Start difference. First operand 2597 states and 6589 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:50,255 INFO L93 Difference]: Finished difference Result 3199 states and 7998 transitions. [2022-01-18 09:23:50,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 09:23:50,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:50,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:50,259 INFO L225 Difference]: With dead ends: 3199 [2022-01-18 09:23:50,259 INFO L226 Difference]: Without dead ends: 3050 [2022-01-18 09:23:50,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=569, Invalid=2623, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:23:50,260 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1041 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:50,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 2992 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:23:50,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-01-18 09:23:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2681. [2022-01-18 09:23:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2680 states have (on average 2.5455223880597013) internal successors, (6822), 2680 states have internal predecessors, (6822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6822 transitions. [2022-01-18 09:23:50,284 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6822 transitions. Word has length 137 [2022-01-18 09:23:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:50,284 INFO L470 AbstractCegarLoop]: Abstraction has 2681 states and 6822 transitions. [2022-01-18 09:23:50,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:50,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6822 transitions. [2022-01-18 09:23:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:50,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:50,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:50,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 09:23:50,287 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:50,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:50,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1578324995, now seen corresponding path program 30 times [2022-01-18 09:23:50,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:50,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280109618] [2022-01-18 09:23:50,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:50,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:51,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:51,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280109618] [2022-01-18 09:23:51,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280109618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:51,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:51,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:23:51,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103887102] [2022-01-18 09:23:51,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:51,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:23:51,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:51,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:23:51,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:23:51,210 INFO L87 Difference]: Start difference. First operand 2681 states and 6822 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:53,834 INFO L93 Difference]: Finished difference Result 3413 states and 8564 transitions. [2022-01-18 09:23:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 09:23:53,834 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:53,838 INFO L225 Difference]: With dead ends: 3413 [2022-01-18 09:23:53,838 INFO L226 Difference]: Without dead ends: 3279 [2022-01-18 09:23:53,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=612, Invalid=2928, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 09:23:53,839 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1449 mSDsluCounter, 3231 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:53,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 3324 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:23:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-01-18 09:23:53,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2877. [2022-01-18 09:23:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2876 states have (on average 2.5424200278164117) internal successors, (7312), 2876 states have internal predecessors, (7312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:53,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 7312 transitions. [2022-01-18 09:23:53,865 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 7312 transitions. Word has length 137 [2022-01-18 09:23:53,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:53,865 INFO L470 AbstractCegarLoop]: Abstraction has 2877 states and 7312 transitions. [2022-01-18 09:23:53,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 7312 transitions. [2022-01-18 09:23:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:53,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:53,868 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:53,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 09:23:53,868 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:53,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:53,868 INFO L85 PathProgramCache]: Analyzing trace with hash -146469949, now seen corresponding path program 31 times [2022-01-18 09:23:53,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:53,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601759223] [2022-01-18 09:23:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:53,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:54,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:54,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601759223] [2022-01-18 09:23:54,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601759223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:54,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:54,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:23:54,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858923180] [2022-01-18 09:23:54,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:54,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:23:54,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:23:54,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:23:54,943 INFO L87 Difference]: Start difference. First operand 2877 states and 7312 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:58,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:23:58,232 INFO L93 Difference]: Finished difference Result 3677 states and 9154 transitions. [2022-01-18 09:23:58,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 09:23:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:23:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:23:58,235 INFO L225 Difference]: With dead ends: 3677 [2022-01-18 09:23:58,236 INFO L226 Difference]: Without dead ends: 3024 [2022-01-18 09:23:58,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=841, Invalid=4415, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 09:23:58,236 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 1711 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:23:58,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1711 Valid, 3886 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:23:58,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2022-01-18 09:23:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 2611. [2022-01-18 09:23:58,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 2.535249042145594) internal successors, (6617), 2610 states have internal predecessors, (6617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6617 transitions. [2022-01-18 09:23:58,260 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6617 transitions. Word has length 137 [2022-01-18 09:23:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:23:58,260 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 6617 transitions. [2022-01-18 09:23:58,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:23:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6617 transitions. [2022-01-18 09:23:58,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:23:58,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:23:58,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:23:58,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 09:23:58,263 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:23:58,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:23:58,263 INFO L85 PathProgramCache]: Analyzing trace with hash -696809013, now seen corresponding path program 32 times [2022-01-18 09:23:58,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:23:58,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63754675] [2022-01-18 09:23:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:23:58,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:23:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:23:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:23:59,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:23:59,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63754675] [2022-01-18 09:23:59,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63754675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:23:59,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:23:59,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:23:59,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217546061] [2022-01-18 09:23:59,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:23:59,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:23:59,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:23:59,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:23:59,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:23:59,306 INFO L87 Difference]: Start difference. First operand 2611 states and 6617 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:01,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:01,787 INFO L93 Difference]: Finished difference Result 2861 states and 7099 transitions. [2022-01-18 09:24:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 09:24:01,787 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:01,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:01,790 INFO L225 Difference]: With dead ends: 2861 [2022-01-18 09:24:01,791 INFO L226 Difference]: Without dead ends: 2712 [2022-01-18 09:24:01,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 09:24:01,791 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 1147 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3078 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:01,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 3078 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:24:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-01-18 09:24:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2613. [2022-01-18 09:24:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.5344563552833077) internal successors, (6620), 2612 states have internal predecessors, (6620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:01,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6620 transitions. [2022-01-18 09:24:01,815 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6620 transitions. Word has length 137 [2022-01-18 09:24:01,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:01,815 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6620 transitions. [2022-01-18 09:24:01,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6620 transitions. [2022-01-18 09:24:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:01,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:01,818 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:01,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 09:24:01,818 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:01,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1867298743, now seen corresponding path program 33 times [2022-01-18 09:24:01,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:01,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671091296] [2022-01-18 09:24:01,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:01,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:02,543 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 09:24:02,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:02,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671091296] [2022-01-18 09:24:02,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671091296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:02,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:02,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:24:02,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833003133] [2022-01-18 09:24:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:02,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:24:02,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:02,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:24:02,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:24:02,544 INFO L87 Difference]: Start difference. First operand 2613 states and 6620 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:04,933 INFO L93 Difference]: Finished difference Result 2789 states and 6946 transitions. [2022-01-18 09:24:04,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:24:04,933 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:04,936 INFO L225 Difference]: With dead ends: 2789 [2022-01-18 09:24:04,936 INFO L226 Difference]: Without dead ends: 2651 [2022-01-18 09:24:04,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=584, Invalid=2608, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:24:04,937 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 978 mSDsluCounter, 3085 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:04,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 3163 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:24:04,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2022-01-18 09:24:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2611. [2022-01-18 09:24:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 2.5348659003831417) internal successors, (6616), 2610 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6616 transitions. [2022-01-18 09:24:04,961 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6616 transitions. Word has length 137 [2022-01-18 09:24:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:04,961 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 6616 transitions. [2022-01-18 09:24:04,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6616 transitions. [2022-01-18 09:24:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:04,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:04,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:04,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 09:24:04,964 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:04,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1097320347, now seen corresponding path program 34 times [2022-01-18 09:24:04,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:04,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070684113] [2022-01-18 09:24:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:04,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:05,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:05,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070684113] [2022-01-18 09:24:05,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070684113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:05,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:05,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:24:05,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607873410] [2022-01-18 09:24:05,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:05,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:24:05,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:05,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:24:05,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:24:05,966 INFO L87 Difference]: Start difference. First operand 2611 states and 6616 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:08,966 INFO L93 Difference]: Finished difference Result 3055 states and 7630 transitions. [2022-01-18 09:24:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 09:24:08,966 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:08,970 INFO L225 Difference]: With dead ends: 3055 [2022-01-18 09:24:08,970 INFO L226 Difference]: Without dead ends: 2921 [2022-01-18 09:24:08,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=773, Invalid=3919, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 09:24:08,971 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1714 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:08,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1714 Valid, 3455 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:24:08,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-01-18 09:24:08,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2821. [2022-01-18 09:24:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2820 states have (on average 2.529787234042553) internal successors, (7134), 2820 states have internal predecessors, (7134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 7134 transitions. [2022-01-18 09:24:08,996 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 7134 transitions. Word has length 137 [2022-01-18 09:24:08,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:08,996 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 7134 transitions. [2022-01-18 09:24:08,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 7134 transitions. [2022-01-18 09:24:08,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:08,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:08,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:08,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 09:24:08,999 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:08,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash 294690569, now seen corresponding path program 35 times [2022-01-18 09:24:08,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42018369] [2022-01-18 09:24:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:08,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:09,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:09,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:09,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42018369] [2022-01-18 09:24:09,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42018369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:09,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:09,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:24:09,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839361461] [2022-01-18 09:24:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:09,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:24:09,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:09,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:24:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:24:09,900 INFO L87 Difference]: Start difference. First operand 2821 states and 7134 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:12,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:12,911 INFO L93 Difference]: Finished difference Result 3319 states and 8220 transitions. [2022-01-18 09:24:12,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 09:24:12,911 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:12,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:12,915 INFO L225 Difference]: With dead ends: 3319 [2022-01-18 09:24:12,915 INFO L226 Difference]: Without dead ends: 2736 [2022-01-18 09:24:12,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=796, Invalid=4034, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 09:24:12,916 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 1988 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:12,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1988 Valid, 4055 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:24:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-01-18 09:24:12,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2625. [2022-01-18 09:24:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2624 states have (on average 2.526676829268293) internal successors, (6630), 2624 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 6630 transitions. [2022-01-18 09:24:12,952 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 6630 transitions. Word has length 137 [2022-01-18 09:24:12,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:12,952 INFO L470 AbstractCegarLoop]: Abstraction has 2625 states and 6630 transitions. [2022-01-18 09:24:12,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:12,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 6630 transitions. [2022-01-18 09:24:12,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:12,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:12,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:12,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 09:24:12,955 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:12,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:12,956 INFO L85 PathProgramCache]: Analyzing trace with hash -859519545, now seen corresponding path program 36 times [2022-01-18 09:24:12,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:12,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218307398] [2022-01-18 09:24:12,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:12,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:14,150 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 09:24:14,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:14,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218307398] [2022-01-18 09:24:14,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218307398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:14,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:14,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:24:14,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971051444] [2022-01-18 09:24:14,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:14,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:24:14,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:24:14,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:24:14,152 INFO L87 Difference]: Start difference. First operand 2625 states and 6630 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:16,995 INFO L93 Difference]: Finished difference Result 2769 states and 6894 transitions. [2022-01-18 09:24:16,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:24:16,995 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:16,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:16,998 INFO L225 Difference]: With dead ends: 2769 [2022-01-18 09:24:16,998 INFO L226 Difference]: Without dead ends: 2413 [2022-01-18 09:24:16,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=762, Invalid=3794, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:24:16,999 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 1449 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:16,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 2926 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:24:17,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-01-18 09:24:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2405. [2022-01-18 09:24:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 2.53369384359401) internal successors, (6091), 2404 states have internal predecessors, (6091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 6091 transitions. [2022-01-18 09:24:17,020 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 6091 transitions. Word has length 137 [2022-01-18 09:24:17,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:17,020 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 6091 transitions. [2022-01-18 09:24:17,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 6091 transitions. [2022-01-18 09:24:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:17,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:17,022 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:17,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 09:24:17,023 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:17,023 INFO L85 PathProgramCache]: Analyzing trace with hash -974143707, now seen corresponding path program 37 times [2022-01-18 09:24:17,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:17,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780782941] [2022-01-18 09:24:17,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:17,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:17,900 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 09:24:17,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:17,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780782941] [2022-01-18 09:24:17,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780782941] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:17,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:17,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:24:17,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460373958] [2022-01-18 09:24:17,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:17,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:24:17,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:17,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:24:17,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:24:17,901 INFO L87 Difference]: Start difference. First operand 2405 states and 6091 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:20,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:20,004 INFO L93 Difference]: Finished difference Result 2540 states and 6332 transitions. [2022-01-18 09:24:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:24:20,004 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:20,007 INFO L225 Difference]: With dead ends: 2540 [2022-01-18 09:24:20,007 INFO L226 Difference]: Without dead ends: 2423 [2022-01-18 09:24:20,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:24:20,008 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 1248 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:20,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2340 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:20,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2022-01-18 09:24:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2399. [2022-01-18 09:24:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.5350291909924936) internal successors, (6079), 2398 states have internal predecessors, (6079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6079 transitions. [2022-01-18 09:24:20,030 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6079 transitions. Word has length 137 [2022-01-18 09:24:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:20,030 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6079 transitions. [2022-01-18 09:24:20,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:20,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6079 transitions. [2022-01-18 09:24:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:20,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:20,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:20,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 09:24:20,032 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2137545691, now seen corresponding path program 38 times [2022-01-18 09:24:20,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:20,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263110532] [2022-01-18 09:24:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:20,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:20,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:20,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263110532] [2022-01-18 09:24:20,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263110532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:20,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:20,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:24:20,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420931984] [2022-01-18 09:24:20,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:20,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:24:20,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:20,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:24:20,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:24:20,890 INFO L87 Difference]: Start difference. First operand 2399 states and 6079 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:22,961 INFO L93 Difference]: Finished difference Result 2564 states and 6379 transitions. [2022-01-18 09:24:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:24:22,961 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:22,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:22,964 INFO L225 Difference]: With dead ends: 2564 [2022-01-18 09:24:22,964 INFO L226 Difference]: Without dead ends: 2453 [2022-01-18 09:24:22,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=496, Invalid=2260, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:24:22,965 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1031 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:22,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 2410 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2022-01-18 09:24:22,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 2397. [2022-01-18 09:24:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 2.535475792988314) internal successors, (6075), 2396 states have internal predecessors, (6075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:22,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 6075 transitions. [2022-01-18 09:24:22,987 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 6075 transitions. Word has length 137 [2022-01-18 09:24:22,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:22,987 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 6075 transitions. [2022-01-18 09:24:22,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:22,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 6075 transitions. [2022-01-18 09:24:22,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:22,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:22,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:22,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 09:24:22,989 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:22,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:22,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1481802843, now seen corresponding path program 39 times [2022-01-18 09:24:22,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:22,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294789649] [2022-01-18 09:24:22,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:22,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:23,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:23,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294789649] [2022-01-18 09:24:23,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294789649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:23,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:23,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:24:23,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696262149] [2022-01-18 09:24:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:23,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:24:23,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:24:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:24:23,682 INFO L87 Difference]: Start difference. First operand 2397 states and 6075 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:25,747 INFO L93 Difference]: Finished difference Result 2590 states and 6431 transitions. [2022-01-18 09:24:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:24:25,747 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:25,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:25,750 INFO L225 Difference]: With dead ends: 2590 [2022-01-18 09:24:25,750 INFO L226 Difference]: Without dead ends: 2481 [2022-01-18 09:24:25,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:24:25,751 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1012 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:25,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 2481 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:25,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2022-01-18 09:24:25,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2437. [2022-01-18 09:24:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 2.5254515599343184) internal successors, (6152), 2436 states have internal predecessors, (6152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:25,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 6152 transitions. [2022-01-18 09:24:25,772 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 6152 transitions. Word has length 137 [2022-01-18 09:24:25,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:25,773 INFO L470 AbstractCegarLoop]: Abstraction has 2437 states and 6152 transitions. [2022-01-18 09:24:25,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 6152 transitions. [2022-01-18 09:24:25,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:25,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:25,775 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:25,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 09:24:25,775 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:25,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:25,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1936819227, now seen corresponding path program 40 times [2022-01-18 09:24:25,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:25,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296634295] [2022-01-18 09:24:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:25,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:26,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:26,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296634295] [2022-01-18 09:24:26,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296634295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:26,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:26,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:24:26,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959143727] [2022-01-18 09:24:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:26,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:24:26,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:24:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:24:26,495 INFO L87 Difference]: Start difference. First operand 2437 states and 6152 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:28,697 INFO L93 Difference]: Finished difference Result 2598 states and 6446 transitions. [2022-01-18 09:24:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:24:28,697 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:28,700 INFO L225 Difference]: With dead ends: 2598 [2022-01-18 09:24:28,700 INFO L226 Difference]: Without dead ends: 2497 [2022-01-18 09:24:28,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:24:28,701 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 894 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:28,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 2781 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:28,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2022-01-18 09:24:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2451. [2022-01-18 09:24:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2450 states have (on average 2.5220408163265304) internal successors, (6179), 2450 states have internal predecessors, (6179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 6179 transitions. [2022-01-18 09:24:28,721 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 6179 transitions. Word has length 137 [2022-01-18 09:24:28,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:28,721 INFO L470 AbstractCegarLoop]: Abstraction has 2451 states and 6179 transitions. [2022-01-18 09:24:28,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 6179 transitions. [2022-01-18 09:24:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:28,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:28,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:28,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 09:24:28,724 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:28,724 INFO L85 PathProgramCache]: Analyzing trace with hash -603080859, now seen corresponding path program 41 times [2022-01-18 09:24:28,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:28,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641366182] [2022-01-18 09:24:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:28,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:29,498 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 09:24:29,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:29,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641366182] [2022-01-18 09:24:29,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641366182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:29,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:29,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:24:29,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784248556] [2022-01-18 09:24:29,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:29,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:24:29,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:29,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:24:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:24:29,500 INFO L87 Difference]: Start difference. First operand 2451 states and 6179 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:31,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:31,635 INFO L93 Difference]: Finished difference Result 2856 states and 7108 transitions. [2022-01-18 09:24:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:24:31,635 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:31,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:31,638 INFO L225 Difference]: With dead ends: 2856 [2022-01-18 09:24:31,639 INFO L226 Difference]: Without dead ends: 2757 [2022-01-18 09:24:31,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:24:31,639 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1135 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:31,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 2719 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:31,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-01-18 09:24:31,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2647. [2022-01-18 09:24:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2646 states have (on average 2.520408163265306) internal successors, (6669), 2646 states have internal predecessors, (6669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 6669 transitions. [2022-01-18 09:24:31,667 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 6669 transitions. Word has length 137 [2022-01-18 09:24:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:31,667 INFO L470 AbstractCegarLoop]: Abstraction has 2647 states and 6669 transitions. [2022-01-18 09:24:31,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 6669 transitions. [2022-01-18 09:24:31,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:31,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:31,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:31,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 09:24:31,670 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:31,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash -395026715, now seen corresponding path program 42 times [2022-01-18 09:24:31,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:31,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370666711] [2022-01-18 09:24:31,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:31,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:32,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:32,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370666711] [2022-01-18 09:24:32,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370666711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:32,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:32,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:24:32,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183166119] [2022-01-18 09:24:32,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:32,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:24:32,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:32,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:24:32,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:24:32,658 INFO L87 Difference]: Start difference. First operand 2647 states and 6669 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:34,801 INFO L93 Difference]: Finished difference Result 3059 states and 7595 transitions. [2022-01-18 09:24:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:24:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:34,805 INFO L225 Difference]: With dead ends: 3059 [2022-01-18 09:24:34,805 INFO L226 Difference]: Without dead ends: 2784 [2022-01-18 09:24:34,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:24:34,806 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 1352 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:34,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 2824 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-01-18 09:24:34,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2689. [2022-01-18 09:24:34,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2689 states, 2688 states have (on average 2.5070684523809526) internal successors, (6739), 2688 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 6739 transitions. [2022-01-18 09:24:34,829 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 6739 transitions. Word has length 137 [2022-01-18 09:24:34,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:34,829 INFO L470 AbstractCegarLoop]: Abstraction has 2689 states and 6739 transitions. [2022-01-18 09:24:34,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 6739 transitions. [2022-01-18 09:24:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:34,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:34,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:34,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 09:24:34,832 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:34,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:34,832 INFO L85 PathProgramCache]: Analyzing trace with hash 550165315, now seen corresponding path program 43 times [2022-01-18 09:24:34,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:34,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885986600] [2022-01-18 09:24:34,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:34,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:35,915 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 09:24:35,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885986600] [2022-01-18 09:24:35,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885986600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:35,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:35,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:24:35,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73287743] [2022-01-18 09:24:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:35,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:24:35,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:35,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:24:35,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:24:35,917 INFO L87 Difference]: Start difference. First operand 2689 states and 6739 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:38,739 INFO L93 Difference]: Finished difference Result 2855 states and 7048 transitions. [2022-01-18 09:24:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 09:24:38,739 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:38,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:38,742 INFO L225 Difference]: With dead ends: 2855 [2022-01-18 09:24:38,742 INFO L226 Difference]: Without dead ends: 2414 [2022-01-18 09:24:38,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 971 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=800, Invalid=3892, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 09:24:38,743 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1521 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:38,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1521 Valid, 2880 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-01-18 09:24:38,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2319. [2022-01-18 09:24:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 2.537532355478861) internal successors, (5882), 2318 states have internal predecessors, (5882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 5882 transitions. [2022-01-18 09:24:38,762 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 5882 transitions. Word has length 137 [2022-01-18 09:24:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:38,762 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 5882 transitions. [2022-01-18 09:24:38,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 5882 transitions. [2022-01-18 09:24:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:38,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:38,764 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:38,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 09:24:38,765 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:38,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1631969307, now seen corresponding path program 44 times [2022-01-18 09:24:38,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:38,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764564581] [2022-01-18 09:24:38,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:38,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:39,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:39,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764564581] [2022-01-18 09:24:39,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764564581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:39,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:39,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:24:39,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057570911] [2022-01-18 09:24:39,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:39,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:24:39,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:39,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:24:39,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:24:39,515 INFO L87 Difference]: Start difference. First operand 2319 states and 5882 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:41,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:41,624 INFO L93 Difference]: Finished difference Result 2639 states and 6527 transitions. [2022-01-18 09:24:41,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:24:41,624 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:41,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:41,627 INFO L225 Difference]: With dead ends: 2639 [2022-01-18 09:24:41,627 INFO L226 Difference]: Without dead ends: 2490 [2022-01-18 09:24:41,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:24:41,628 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 891 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:41,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 2283 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:24:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-01-18 09:24:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2359. [2022-01-18 09:24:41,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2358 states have (on average 2.536047497879559) internal successors, (5980), 2358 states have internal predecessors, (5980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:41,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 5980 transitions. [2022-01-18 09:24:41,647 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 5980 transitions. Word has length 137 [2022-01-18 09:24:41,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:41,648 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 5980 transitions. [2022-01-18 09:24:41,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:41,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 5980 transitions. [2022-01-18 09:24:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:41,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:41,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:41,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 09:24:41,650 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash 844322295, now seen corresponding path program 45 times [2022-01-18 09:24:41,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:41,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992012199] [2022-01-18 09:24:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:41,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:42,486 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 09:24:42,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:42,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992012199] [2022-01-18 09:24:42,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992012199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:42,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:42,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:24:42,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819592782] [2022-01-18 09:24:42,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:42,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:24:42,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:24:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:24:42,487 INFO L87 Difference]: Start difference. First operand 2359 states and 5980 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:44,660 INFO L93 Difference]: Finished difference Result 2569 states and 6377 transitions. [2022-01-18 09:24:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:24:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:44,663 INFO L225 Difference]: With dead ends: 2569 [2022-01-18 09:24:44,663 INFO L226 Difference]: Without dead ends: 2431 [2022-01-18 09:24:44,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:24:44,663 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1014 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:44,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 1998 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:44,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2022-01-18 09:24:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2357. [2022-01-18 09:24:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2356 states have (on average 2.5360780984719864) internal successors, (5975), 2356 states have internal predecessors, (5975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 5975 transitions. [2022-01-18 09:24:44,685 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 5975 transitions. Word has length 137 [2022-01-18 09:24:44,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:44,685 INFO L470 AbstractCegarLoop]: Abstraction has 2357 states and 5975 transitions. [2022-01-18 09:24:44,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 5975 transitions. [2022-01-18 09:24:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:44,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:44,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:44,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 09:24:44,688 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1991475765, now seen corresponding path program 46 times [2022-01-18 09:24:44,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:44,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304845985] [2022-01-18 09:24:44,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:44,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:45,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:45,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:45,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304845985] [2022-01-18 09:24:45,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304845985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:45,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:45,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:24:45,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104274831] [2022-01-18 09:24:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:45,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:24:45,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:24:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:24:45,501 INFO L87 Difference]: Start difference. First operand 2357 states and 5975 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:47,652 INFO L93 Difference]: Finished difference Result 2567 states and 6372 transitions. [2022-01-18 09:24:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:24:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:47,655 INFO L225 Difference]: With dead ends: 2567 [2022-01-18 09:24:47,655 INFO L226 Difference]: Without dead ends: 2419 [2022-01-18 09:24:47,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:24:47,656 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1023 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:47,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 2296 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:24:47,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2022-01-18 09:24:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 2353. [2022-01-18 09:24:47,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 2352 states have (on average 2.5327380952380953) internal successors, (5957), 2352 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:47,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 5957 transitions. [2022-01-18 09:24:47,676 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 5957 transitions. Word has length 137 [2022-01-18 09:24:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:47,676 INFO L470 AbstractCegarLoop]: Abstraction has 2353 states and 5957 transitions. [2022-01-18 09:24:47,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 5957 transitions. [2022-01-18 09:24:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:47,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:47,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:47,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 09:24:47,679 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:47,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash 382697111, now seen corresponding path program 47 times [2022-01-18 09:24:47,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:47,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210743910] [2022-01-18 09:24:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:47,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:48,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:48,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210743910] [2022-01-18 09:24:48,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210743910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:48,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:48,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:24:48,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933355666] [2022-01-18 09:24:48,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:48,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:24:48,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:48,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:24:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:24:48,438 INFO L87 Difference]: Start difference. First operand 2353 states and 5957 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:50,711 INFO L93 Difference]: Finished difference Result 2675 states and 6603 transitions. [2022-01-18 09:24:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:24:50,711 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:50,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:50,714 INFO L225 Difference]: With dead ends: 2675 [2022-01-18 09:24:50,714 INFO L226 Difference]: Without dead ends: 2481 [2022-01-18 09:24:50,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=538, Invalid=2542, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:24:50,715 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 1203 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:50,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 2218 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:50,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2022-01-18 09:24:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2359. [2022-01-18 09:24:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2358 states have (on average 2.5301102629346905) internal successors, (5966), 2358 states have internal predecessors, (5966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 5966 transitions. [2022-01-18 09:24:50,736 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 5966 transitions. Word has length 137 [2022-01-18 09:24:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:50,736 INFO L470 AbstractCegarLoop]: Abstraction has 2359 states and 5966 transitions. [2022-01-18 09:24:50,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 5966 transitions. [2022-01-18 09:24:50,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:50,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:50,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:50,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 09:24:50,738 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1246063225, now seen corresponding path program 48 times [2022-01-18 09:24:50,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159474856] [2022-01-18 09:24:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:50,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:24:51,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:51,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159474856] [2022-01-18 09:24:51,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159474856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:51,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:51,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:24:51,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047488562] [2022-01-18 09:24:51,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:51,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:24:51,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:24:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:24:51,597 INFO L87 Difference]: Start difference. First operand 2359 states and 5966 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:53,838 INFO L93 Difference]: Finished difference Result 2623 states and 6481 transitions. [2022-01-18 09:24:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:24:53,838 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:53,841 INFO L225 Difference]: With dead ends: 2623 [2022-01-18 09:24:53,841 INFO L226 Difference]: Without dead ends: 2474 [2022-01-18 09:24:53,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:24:53,842 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 1090 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:53,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2281 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:53,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-01-18 09:24:53,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2361. [2022-01-18 09:24:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2361 states, 2360 states have (on average 2.5292372881355933) internal successors, (5969), 2360 states have internal predecessors, (5969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2361 states to 2361 states and 5969 transitions. [2022-01-18 09:24:53,864 INFO L78 Accepts]: Start accepts. Automaton has 2361 states and 5969 transitions. Word has length 137 [2022-01-18 09:24:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:53,864 INFO L470 AbstractCegarLoop]: Abstraction has 2361 states and 5969 transitions. [2022-01-18 09:24:53,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2361 states and 5969 transitions. [2022-01-18 09:24:53,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:53,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:53,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:53,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 09:24:53,867 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:53,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash 458416213, now seen corresponding path program 49 times [2022-01-18 09:24:53,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:53,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166281001] [2022-01-18 09:24:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:53,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:54,698 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 09:24:54,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:54,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166281001] [2022-01-18 09:24:54,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166281001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:54,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:54,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:24:54,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864003761] [2022-01-18 09:24:54,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:54,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:24:54,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:54,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:24:54,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:24:54,699 INFO L87 Difference]: Start difference. First operand 2361 states and 5969 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:56,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:56,912 INFO L93 Difference]: Finished difference Result 2549 states and 6325 transitions. [2022-01-18 09:24:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:24:56,913 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:56,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:56,916 INFO L225 Difference]: With dead ends: 2549 [2022-01-18 09:24:56,916 INFO L226 Difference]: Without dead ends: 2387 [2022-01-18 09:24:56,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:24:56,917 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 983 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:56,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 2416 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2022-01-18 09:24:56,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2335. [2022-01-18 09:24:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.5329905741216794) internal successors, (5912), 2334 states have internal predecessors, (5912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5912 transitions. [2022-01-18 09:24:56,944 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5912 transitions. Word has length 137 [2022-01-18 09:24:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:56,944 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5912 transitions. [2022-01-18 09:24:56,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5912 transitions. [2022-01-18 09:24:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:56,947 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:56,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:56,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 09:24:56,947 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:56,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1579904957, now seen corresponding path program 50 times [2022-01-18 09:24:56,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:56,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854896627] [2022-01-18 09:24:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:56,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:24:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:24:57,827 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 09:24:57,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:24:57,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854896627] [2022-01-18 09:24:57,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854896627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:24:57,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:24:57,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:24:57,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005163737] [2022-01-18 09:24:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:24:57,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:24:57,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:24:57,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:24:57,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:24:57,829 INFO L87 Difference]: Start difference. First operand 2335 states and 5912 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:59,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:24:59,928 INFO L93 Difference]: Finished difference Result 2490 states and 6199 transitions. [2022-01-18 09:24:59,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:24:59,928 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:24:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:24:59,931 INFO L225 Difference]: With dead ends: 2490 [2022-01-18 09:24:59,931 INFO L226 Difference]: Without dead ends: 2373 [2022-01-18 09:24:59,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:24:59,932 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1163 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:24:59,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 2297 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:24:59,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-01-18 09:24:59,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2325. [2022-01-18 09:24:59,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 2.534853700516351) internal successors, (5891), 2324 states have internal predecessors, (5891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:59,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 5891 transitions. [2022-01-18 09:24:59,951 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 5891 transitions. Word has length 137 [2022-01-18 09:24:59,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:24:59,951 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 5891 transitions. [2022-01-18 09:24:59,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:24:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 5891 transitions. [2022-01-18 09:24:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:24:59,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:24:59,973 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:24:59,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 09:24:59,973 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:24:59,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:24:59,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1286899175, now seen corresponding path program 51 times [2022-01-18 09:24:59,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:24:59,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916326621] [2022-01-18 09:24:59,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:24:59,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:00,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:00,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:00,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916326621] [2022-01-18 09:25:00,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916326621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:00,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:00,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:00,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895012481] [2022-01-18 09:25:00,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:00,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:00,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:00,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:00,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:00,667 INFO L87 Difference]: Start difference. First operand 2325 states and 5891 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:02,804 INFO L93 Difference]: Finished difference Result 2589 states and 6410 transitions. [2022-01-18 09:25:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:02,805 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:02,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:02,808 INFO L225 Difference]: With dead ends: 2589 [2022-01-18 09:25:02,808 INFO L226 Difference]: Without dead ends: 2440 [2022-01-18 09:25:02,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:02,808 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 1014 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:02,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 2248 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2022-01-18 09:25:02,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2337. [2022-01-18 09:25:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2336 states have (on average 2.533818493150685) internal successors, (5919), 2336 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 5919 transitions. [2022-01-18 09:25:02,831 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 5919 transitions. Word has length 137 [2022-01-18 09:25:02,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:02,832 INFO L470 AbstractCegarLoop]: Abstraction has 2337 states and 5919 transitions. [2022-01-18 09:25:02,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:02,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 5919 transitions. [2022-01-18 09:25:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:02,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:02,834 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:02,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 09:25:02,834 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:02,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2074546187, now seen corresponding path program 52 times [2022-01-18 09:25:02,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:02,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611262564] [2022-01-18 09:25:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:02,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:03,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:03,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611262564] [2022-01-18 09:25:03,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611262564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:03,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:03,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:03,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291469321] [2022-01-18 09:25:03,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:03,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:03,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:03,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:03,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:03,499 INFO L87 Difference]: Start difference. First operand 2337 states and 5919 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:05,573 INFO L93 Difference]: Finished difference Result 2519 states and 6260 transitions. [2022-01-18 09:25:05,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:05,573 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:05,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:05,576 INFO L225 Difference]: With dead ends: 2519 [2022-01-18 09:25:05,576 INFO L226 Difference]: Without dead ends: 2381 [2022-01-18 09:25:05,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=518, Invalid=2344, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:05,577 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 1016 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:05,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 2170 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-01-18 09:25:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2335. [2022-01-18 09:25:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.533847472150814) internal successors, (5914), 2334 states have internal predecessors, (5914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5914 transitions. [2022-01-18 09:25:05,600 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5914 transitions. Word has length 137 [2022-01-18 09:25:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:05,600 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5914 transitions. [2022-01-18 09:25:05,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5914 transitions. [2022-01-18 09:25:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:05,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:05,602 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:05,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 09:25:05,603 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:05,603 INFO L85 PathProgramCache]: Analyzing trace with hash -927392717, now seen corresponding path program 53 times [2022-01-18 09:25:05,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:05,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708766471] [2022-01-18 09:25:05,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:05,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:06,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:06,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708766471] [2022-01-18 09:25:06,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708766471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:06,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:06,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:25:06,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018011828] [2022-01-18 09:25:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:06,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:25:06,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:25:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:06,434 INFO L87 Difference]: Start difference. First operand 2335 states and 5914 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:09,117 INFO L93 Difference]: Finished difference Result 2531 states and 6278 transitions. [2022-01-18 09:25:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:25:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:09,120 INFO L225 Difference]: With dead ends: 2531 [2022-01-18 09:25:09,120 INFO L226 Difference]: Without dead ends: 2383 [2022-01-18 09:25:09,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=704, Invalid=3328, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:25:09,121 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1238 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:09,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 2416 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:25:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2022-01-18 09:25:09,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2331. [2022-01-18 09:25:09,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2330 states have (on average 2.5330472103004293) internal successors, (5902), 2330 states have internal predecessors, (5902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:09,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 5902 transitions. [2022-01-18 09:25:09,140 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 5902 transitions. Word has length 137 [2022-01-18 09:25:09,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:09,140 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 5902 transitions. [2022-01-18 09:25:09,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:09,140 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 5902 transitions. [2022-01-18 09:25:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:09,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:09,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:09,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 09:25:09,142 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1580946151, now seen corresponding path program 54 times [2022-01-18 09:25:09,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:09,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824554035] [2022-01-18 09:25:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:09,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:09,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:09,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824554035] [2022-01-18 09:25:09,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824554035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:09,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:09,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:25:09,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963727812] [2022-01-18 09:25:09,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:09,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:25:09,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:09,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:25:09,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:25:09,983 INFO L87 Difference]: Start difference. First operand 2331 states and 5902 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:12,589 INFO L93 Difference]: Finished difference Result 2482 states and 6179 transitions. [2022-01-18 09:25:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:25:12,589 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:12,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:12,592 INFO L225 Difference]: With dead ends: 2482 [2022-01-18 09:25:12,592 INFO L226 Difference]: Without dead ends: 2371 [2022-01-18 09:25:12,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=704, Invalid=3328, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:25:12,593 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 1382 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:12,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 2212 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:12,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-01-18 09:25:12,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2327. [2022-01-18 09:25:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2326 states have (on average 2.53396388650043) internal successors, (5894), 2326 states have internal predecessors, (5894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 5894 transitions. [2022-01-18 09:25:12,614 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 5894 transitions. Word has length 137 [2022-01-18 09:25:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:12,614 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 5894 transitions. [2022-01-18 09:25:12,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 5894 transitions. [2022-01-18 09:25:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:12,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:12,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:12,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 09:25:12,616 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:12,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:12,617 INFO L85 PathProgramCache]: Analyzing trace with hash 183310063, now seen corresponding path program 55 times [2022-01-18 09:25:12,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:12,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336911039] [2022-01-18 09:25:12,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:12,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:13,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:13,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336911039] [2022-01-18 09:25:13,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336911039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:13,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:13,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:13,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681907155] [2022-01-18 09:25:13,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:13,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:13,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:13,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:13,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:13,305 INFO L87 Difference]: Start difference. First operand 2327 states and 5894 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:15,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:15,403 INFO L93 Difference]: Finished difference Result 2518 states and 6263 transitions. [2022-01-18 09:25:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:15,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:15,406 INFO L225 Difference]: With dead ends: 2518 [2022-01-18 09:25:15,407 INFO L226 Difference]: Without dead ends: 2409 [2022-01-18 09:25:15,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:15,407 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 1010 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:15,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2267 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2022-01-18 09:25:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2337. [2022-01-18 09:25:15,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2336 states have (on average 2.5329623287671232) internal successors, (5917), 2336 states have internal predecessors, (5917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:15,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 5917 transitions. [2022-01-18 09:25:15,427 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 5917 transitions. Word has length 137 [2022-01-18 09:25:15,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:15,427 INFO L470 AbstractCegarLoop]: Abstraction has 2337 states and 5917 transitions. [2022-01-18 09:25:15,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:15,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 5917 transitions. [2022-01-18 09:25:15,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:15,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:15,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:15,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 09:25:15,429 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:15,430 INFO L85 PathProgramCache]: Analyzing trace with hash -379207133, now seen corresponding path program 56 times [2022-01-18 09:25:15,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:15,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003993592] [2022-01-18 09:25:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:15,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:16,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:16,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003993592] [2022-01-18 09:25:16,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003993592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:16,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:16,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:16,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765920739] [2022-01-18 09:25:16,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:16,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:16,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:16,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:16,155 INFO L87 Difference]: Start difference. First operand 2337 states and 5917 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:18,257 INFO L93 Difference]: Finished difference Result 2478 states and 6173 transitions. [2022-01-18 09:25:18,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:18,257 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:18,260 INFO L225 Difference]: With dead ends: 2478 [2022-01-18 09:25:18,260 INFO L226 Difference]: Without dead ends: 2375 [2022-01-18 09:25:18,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=518, Invalid=2344, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:18,261 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 970 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:18,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 2041 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-01-18 09:25:18,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2335. [2022-01-18 09:25:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.5329905741216794) internal successors, (5912), 2334 states have internal predecessors, (5912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5912 transitions. [2022-01-18 09:25:18,281 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5912 transitions. Word has length 137 [2022-01-18 09:25:18,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:18,281 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5912 transitions. [2022-01-18 09:25:18,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5912 transitions. [2022-01-18 09:25:18,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:18,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:18,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:18,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 09:25:18,284 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:18,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1239168811, now seen corresponding path program 57 times [2022-01-18 09:25:18,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:18,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768380152] [2022-01-18 09:25:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:18,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:18,992 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 09:25:18,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:18,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768380152] [2022-01-18 09:25:18,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768380152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:18,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:18,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:18,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236045078] [2022-01-18 09:25:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:18,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:18,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:18,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:18,994 INFO L87 Difference]: Start difference. First operand 2335 states and 5912 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:21,012 INFO L93 Difference]: Finished difference Result 2476 states and 6168 transitions. [2022-01-18 09:25:21,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:21,013 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:21,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:21,015 INFO L225 Difference]: With dead ends: 2476 [2022-01-18 09:25:21,015 INFO L226 Difference]: Without dead ends: 2363 [2022-01-18 09:25:21,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:25:21,016 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1108 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:21,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 2117 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:21,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2022-01-18 09:25:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 2331. [2022-01-18 09:25:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2330 states have (on average 2.532188841201717) internal successors, (5900), 2330 states have internal predecessors, (5900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 5900 transitions. [2022-01-18 09:25:21,036 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 5900 transitions. Word has length 137 [2022-01-18 09:25:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:21,036 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 5900 transitions. [2022-01-18 09:25:21,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 5900 transitions. [2022-01-18 09:25:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:21,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:21,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:21,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 09:25:21,038 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:21,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:21,038 INFO L85 PathProgramCache]: Analyzing trace with hash 244800887, now seen corresponding path program 58 times [2022-01-18 09:25:21,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:21,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838503129] [2022-01-18 09:25:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:21,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:21,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:21,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:21,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838503129] [2022-01-18 09:25:21,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838503129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:21,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:21,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:25:21,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712987249] [2022-01-18 09:25:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:21,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:25:21,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:25:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:25:21,728 INFO L87 Difference]: Start difference. First operand 2331 states and 5900 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:23,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:23,766 INFO L93 Difference]: Finished difference Result 2497 states and 6209 transitions. [2022-01-18 09:25:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:23,769 INFO L225 Difference]: With dead ends: 2497 [2022-01-18 09:25:23,769 INFO L226 Difference]: Without dead ends: 2343 [2022-01-18 09:25:23,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:23,770 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 987 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:23,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 2370 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2022-01-18 09:25:23,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2319. [2022-01-18 09:25:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 2.5362381363244175) internal successors, (5879), 2318 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:23,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 5879 transitions. [2022-01-18 09:25:23,790 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 5879 transitions. Word has length 137 [2022-01-18 09:25:23,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:23,790 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 5879 transitions. [2022-01-18 09:25:23,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:23,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 5879 transitions. [2022-01-18 09:25:23,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:23,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:23,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:23,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 09:25:23,793 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:23,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:23,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1302344985, now seen corresponding path program 59 times [2022-01-18 09:25:23,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:23,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603621124] [2022-01-18 09:25:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:23,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:24,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:24,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603621124] [2022-01-18 09:25:24,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603621124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:24,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:24,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:25:24,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991501468] [2022-01-18 09:25:24,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:24,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:25:24,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:25:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:25:24,537 INFO L87 Difference]: Start difference. First operand 2319 states and 5879 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:26,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:26,712 INFO L93 Difference]: Finished difference Result 2767 states and 6878 transitions. [2022-01-18 09:25:26,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:26,712 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:26,716 INFO L225 Difference]: With dead ends: 2767 [2022-01-18 09:25:26,716 INFO L226 Difference]: Without dead ends: 2618 [2022-01-18 09:25:26,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:25:26,716 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 1041 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:26,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 2574 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:25:26,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2022-01-18 09:25:26,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2345. [2022-01-18 09:25:26,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2344 states have (on average 2.5379692832764507) internal successors, (5949), 2344 states have internal predecessors, (5949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 5949 transitions. [2022-01-18 09:25:26,738 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 5949 transitions. Word has length 137 [2022-01-18 09:25:26,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:26,738 INFO L470 AbstractCegarLoop]: Abstraction has 2345 states and 5949 transitions. [2022-01-18 09:25:26,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:26,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 5949 transitions. [2022-01-18 09:25:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:26,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:26,740 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:26,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 09:25:26,740 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:26,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:26,740 INFO L85 PathProgramCache]: Analyzing trace with hash 514697973, now seen corresponding path program 60 times [2022-01-18 09:25:26,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:26,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062670923] [2022-01-18 09:25:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:26,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:27,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:27,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:27,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062670923] [2022-01-18 09:25:27,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062670923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:27,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:27,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:25:27,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463736154] [2022-01-18 09:25:27,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:27,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:25:27,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:27,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:25:27,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:25:27,557 INFO L87 Difference]: Start difference. First operand 2345 states and 5949 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:29,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:29,636 INFO L93 Difference]: Finished difference Result 2697 states and 6728 transitions. [2022-01-18 09:25:29,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:29,636 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:29,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:29,639 INFO L225 Difference]: With dead ends: 2697 [2022-01-18 09:25:29,639 INFO L226 Difference]: Without dead ends: 2559 [2022-01-18 09:25:29,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=559, Invalid=2633, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:25:29,640 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1083 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:29,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1083 Valid, 2207 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:29,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-01-18 09:25:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2343. [2022-01-18 09:25:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 2.53800170794193) internal successors, (5944), 2342 states have internal predecessors, (5944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 5944 transitions. [2022-01-18 09:25:29,662 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 5944 transitions. Word has length 137 [2022-01-18 09:25:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:29,663 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 5944 transitions. [2022-01-18 09:25:29,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 5944 transitions. [2022-01-18 09:25:29,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:29,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:29,665 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:29,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 09:25:29,665 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1661851443, now seen corresponding path program 61 times [2022-01-18 09:25:29,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:29,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291033908] [2022-01-18 09:25:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:29,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:30,465 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 09:25:30,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:30,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291033908] [2022-01-18 09:25:30,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291033908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:30,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:30,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:25:30,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739039812] [2022-01-18 09:25:30,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:30,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:25:30,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:30,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:25:30,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:25:30,466 INFO L87 Difference]: Start difference. First operand 2343 states and 5944 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:32,607 INFO L93 Difference]: Finished difference Result 2709 states and 6746 transitions. [2022-01-18 09:25:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:32,607 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:32,610 INFO L225 Difference]: With dead ends: 2709 [2022-01-18 09:25:32,610 INFO L226 Difference]: Without dead ends: 2561 [2022-01-18 09:25:32,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:25:32,611 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1153 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:32,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 2147 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-18 09:25:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2339. [2022-01-18 09:25:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.5372112917023095) internal successors, (5932), 2338 states have internal predecessors, (5932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5932 transitions. [2022-01-18 09:25:32,633 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5932 transitions. Word has length 137 [2022-01-18 09:25:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:32,633 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5932 transitions. [2022-01-18 09:25:32,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5932 transitions. [2022-01-18 09:25:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:32,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:32,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:32,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 09:25:32,636 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:32,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1008298009, now seen corresponding path program 62 times [2022-01-18 09:25:32,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:32,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57102037] [2022-01-18 09:25:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:32,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:33,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:33,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:33,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57102037] [2022-01-18 09:25:33,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57102037] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:33,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:33,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:33,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819034924] [2022-01-18 09:25:33,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:33,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:33,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:33,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:33,370 INFO L87 Difference]: Start difference. First operand 2339 states and 5932 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:35,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:35,362 INFO L93 Difference]: Finished difference Result 2660 states and 6647 transitions. [2022-01-18 09:25:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:35,366 INFO L225 Difference]: With dead ends: 2660 [2022-01-18 09:25:35,366 INFO L226 Difference]: Without dead ends: 2549 [2022-01-18 09:25:35,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:25:35,366 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 1266 mSDsluCounter, 1981 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:35,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 2081 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:25:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2022-01-18 09:25:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2335. [2022-01-18 09:25:35,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.538131962296487) internal successors, (5924), 2334 states have internal predecessors, (5924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5924 transitions. [2022-01-18 09:25:35,389 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5924 transitions. Word has length 137 [2022-01-18 09:25:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:35,389 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5924 transitions. [2022-01-18 09:25:35,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5924 transitions. [2022-01-18 09:25:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:35,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:35,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:35,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 09:25:35,392 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:35,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1522413073, now seen corresponding path program 63 times [2022-01-18 09:25:35,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:35,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225233538] [2022-01-18 09:25:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:35,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:36,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:36,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225233538] [2022-01-18 09:25:36,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225233538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:36,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:36,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:25:36,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994762022] [2022-01-18 09:25:36,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:36,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:25:36,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:25:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:25:36,256 INFO L87 Difference]: Start difference. First operand 2335 states and 5924 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:38,414 INFO L93 Difference]: Finished difference Result 2702 states and 6746 transitions. [2022-01-18 09:25:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:38,418 INFO L225 Difference]: With dead ends: 2702 [2022-01-18 09:25:38,418 INFO L226 Difference]: Without dead ends: 2593 [2022-01-18 09:25:38,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=546, Invalid=2646, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:25:38,418 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 948 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:38,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 2459 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:38,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-01-18 09:25:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2345. [2022-01-18 09:25:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2344 states have (on average 2.5371160409556315) internal successors, (5947), 2344 states have internal predecessors, (5947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:38,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 5947 transitions. [2022-01-18 09:25:38,439 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 5947 transitions. Word has length 137 [2022-01-18 09:25:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:38,439 INFO L470 AbstractCegarLoop]: Abstraction has 2345 states and 5947 transitions. [2022-01-18 09:25:38,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 5947 transitions. [2022-01-18 09:25:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:38,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:38,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:38,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 09:25:38,442 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2084930269, now seen corresponding path program 64 times [2022-01-18 09:25:38,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:38,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577277453] [2022-01-18 09:25:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:38,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:39,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:39,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577277453] [2022-01-18 09:25:39,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577277453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:39,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:39,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:39,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114279613] [2022-01-18 09:25:39,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:39,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:39,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:39,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:39,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:39,145 INFO L87 Difference]: Start difference. First operand 2345 states and 5947 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:41,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:41,226 INFO L93 Difference]: Finished difference Result 2662 states and 6656 transitions. [2022-01-18 09:25:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:41,226 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:41,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:41,229 INFO L225 Difference]: With dead ends: 2662 [2022-01-18 09:25:41,229 INFO L226 Difference]: Without dead ends: 2559 [2022-01-18 09:25:41,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=518, Invalid=2344, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:41,229 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 992 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:41,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 2453 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:41,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-01-18 09:25:41,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2343. [2022-01-18 09:25:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2342 states have (on average 2.5371477369769426) internal successors, (5942), 2342 states have internal predecessors, (5942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 5942 transitions. [2022-01-18 09:25:41,250 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 5942 transitions. Word has length 137 [2022-01-18 09:25:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:41,250 INFO L470 AbstractCegarLoop]: Abstraction has 2343 states and 5942 transitions. [2022-01-18 09:25:41,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 5942 transitions. [2022-01-18 09:25:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:41,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:41,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:41,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 09:25:41,252 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:41,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1350075349, now seen corresponding path program 65 times [2022-01-18 09:25:41,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:41,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811883303] [2022-01-18 09:25:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:41,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:41,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:41,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811883303] [2022-01-18 09:25:41,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811883303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:41,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:41,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:25:41,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161790669] [2022-01-18 09:25:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:41,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:25:41,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:25:41,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:25:41,928 INFO L87 Difference]: Start difference. First operand 2343 states and 5942 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:43,909 INFO L93 Difference]: Finished difference Result 2674 states and 6674 transitions. [2022-01-18 09:25:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:43,909 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:43,913 INFO L225 Difference]: With dead ends: 2674 [2022-01-18 09:25:43,913 INFO L226 Difference]: Without dead ends: 2561 [2022-01-18 09:25:43,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:43,913 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 962 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:43,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 2240 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-18 09:25:43,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2339. [2022-01-18 09:25:43,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.536355859709153) internal successors, (5930), 2338 states have internal predecessors, (5930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5930 transitions. [2022-01-18 09:25:43,935 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5930 transitions. Word has length 137 [2022-01-18 09:25:43,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:43,935 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5930 transitions. [2022-01-18 09:25:43,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:43,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5930 transitions. [2022-01-18 09:25:43,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:43,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:43,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:43,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 09:25:43,937 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1460922249, now seen corresponding path program 66 times [2022-01-18 09:25:43,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:43,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347919355] [2022-01-18 09:25:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:43,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:44,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:44,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347919355] [2022-01-18 09:25:44,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347919355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:44,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:44,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:44,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641420377] [2022-01-18 09:25:44,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:44,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:44,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:44,613 INFO L87 Difference]: Start difference. First operand 2339 states and 5930 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:46,710 INFO L93 Difference]: Finished difference Result 2695 states and 6715 transitions. [2022-01-18 09:25:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:46,711 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:46,714 INFO L225 Difference]: With dead ends: 2695 [2022-01-18 09:25:46,714 INFO L226 Difference]: Without dead ends: 2547 [2022-01-18 09:25:46,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:25:46,714 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 864 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:46,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 2513 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:25:46,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-01-18 09:25:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2333. [2022-01-18 09:25:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 2332 states have (on average 2.5385934819897082) internal successors, (5920), 2332 states have internal predecessors, (5920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:46,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 5920 transitions. [2022-01-18 09:25:46,736 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 5920 transitions. Word has length 137 [2022-01-18 09:25:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:46,736 INFO L470 AbstractCegarLoop]: Abstraction has 2333 states and 5920 transitions. [2022-01-18 09:25:46,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 5920 transitions. [2022-01-18 09:25:46,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:46,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:46,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:46,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 09:25:46,739 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:46,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1793036647, now seen corresponding path program 67 times [2022-01-18 09:25:46,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:46,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58289604] [2022-01-18 09:25:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:46,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:47,502 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 09:25:47,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:47,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58289604] [2022-01-18 09:25:47,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58289604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:47,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:47,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:47,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135436059] [2022-01-18 09:25:47,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:47,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:47,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:47,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:47,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:47,504 INFO L87 Difference]: Start difference. First operand 2333 states and 5920 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:49,630 INFO L93 Difference]: Finished difference Result 2827 states and 7021 transitions. [2022-01-18 09:25:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:49,630 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:49,634 INFO L225 Difference]: With dead ends: 2827 [2022-01-18 09:25:49,634 INFO L226 Difference]: Without dead ends: 2678 [2022-01-18 09:25:49,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=508, Invalid=2354, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:25:49,634 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 1004 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:49,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 2453 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-01-18 09:25:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2399. [2022-01-18 09:25:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.54837364470392) internal successors, (6111), 2398 states have internal predecessors, (6111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6111 transitions. [2022-01-18 09:25:49,656 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6111 transitions. Word has length 137 [2022-01-18 09:25:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:49,656 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6111 transitions. [2022-01-18 09:25:49,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6111 transitions. [2022-01-18 09:25:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:49,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:49,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:49,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 09:25:49,659 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:49,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:49,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1714283637, now seen corresponding path program 68 times [2022-01-18 09:25:49,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:49,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187864605] [2022-01-18 09:25:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:49,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:50,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:50,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187864605] [2022-01-18 09:25:50,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187864605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:50,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:50,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:25:50,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575972102] [2022-01-18 09:25:50,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:50,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:25:50,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:50,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:25:50,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:25:50,405 INFO L87 Difference]: Start difference. First operand 2399 states and 6111 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:52,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:52,553 INFO L93 Difference]: Finished difference Result 2757 states and 6871 transitions. [2022-01-18 09:25:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:25:52,553 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:52,557 INFO L225 Difference]: With dead ends: 2757 [2022-01-18 09:25:52,557 INFO L226 Difference]: Without dead ends: 2619 [2022-01-18 09:25:52,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:25:52,558 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 1007 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:52,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 2245 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-01-18 09:25:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2397. [2022-01-18 09:25:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 2.548414023372287) internal successors, (6106), 2396 states have internal predecessors, (6106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 6106 transitions. [2022-01-18 09:25:52,580 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 6106 transitions. Word has length 137 [2022-01-18 09:25:52,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:52,580 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 6106 transitions. [2022-01-18 09:25:52,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 6106 transitions. [2022-01-18 09:25:52,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:52,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:52,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:52,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 09:25:52,583 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:52,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:52,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1433530189, now seen corresponding path program 69 times [2022-01-18 09:25:52,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:52,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379133755] [2022-01-18 09:25:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:52,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:53,269 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 09:25:53,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:53,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379133755] [2022-01-18 09:25:53,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379133755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:53,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:53,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:53,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794805994] [2022-01-18 09:25:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:53,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:53,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:53,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:53,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:53,270 INFO L87 Difference]: Start difference. First operand 2397 states and 6106 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:55,292 INFO L93 Difference]: Finished difference Result 2769 states and 6889 transitions. [2022-01-18 09:25:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:55,293 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:55,296 INFO L225 Difference]: With dead ends: 2769 [2022-01-18 09:25:55,296 INFO L226 Difference]: Without dead ends: 2621 [2022-01-18 09:25:55,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:25:55,296 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 1031 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:55,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 2104 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:55,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2022-01-18 09:25:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2393. [2022-01-18 09:25:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2392 states have (on average 2.5464046822742477) internal successors, (6091), 2392 states have internal predecessors, (6091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 6091 transitions. [2022-01-18 09:25:55,317 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 6091 transitions. Word has length 137 [2022-01-18 09:25:55,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:55,317 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 6091 transitions. [2022-01-18 09:25:55,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 6091 transitions. [2022-01-18 09:25:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:55,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:55,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:55,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 09:25:55,319 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2087083623, now seen corresponding path program 70 times [2022-01-18 09:25:55,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:55,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325983308] [2022-01-18 09:25:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:55,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:25:56,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:56,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325983308] [2022-01-18 09:25:56,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325983308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:56,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:56,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:25:56,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626023478] [2022-01-18 09:25:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:56,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:25:56,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:56,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:25:56,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:25:56,214 INFO L87 Difference]: Start difference. First operand 2393 states and 6091 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:58,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:25:58,343 INFO L93 Difference]: Finished difference Result 2720 states and 6787 transitions. [2022-01-18 09:25:58,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:25:58,343 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:25:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:25:58,346 INFO L225 Difference]: With dead ends: 2720 [2022-01-18 09:25:58,347 INFO L226 Difference]: Without dead ends: 2609 [2022-01-18 09:25:58,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=496, Invalid=2260, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:25:58,347 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 1181 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:25:58,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 2291 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:25:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2022-01-18 09:25:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2389. [2022-01-18 09:25:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2388 states have (on average 2.5477386934673367) internal successors, (6084), 2388 states have internal predecessors, (6084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 6084 transitions. [2022-01-18 09:25:58,368 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 6084 transitions. Word has length 137 [2022-01-18 09:25:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:25:58,368 INFO L470 AbstractCegarLoop]: Abstraction has 2389 states and 6084 transitions. [2022-01-18 09:25:58,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:25:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 6084 transitions. [2022-01-18 09:25:58,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:25:58,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:25:58,371 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:25:58,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 09:25:58,371 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:25:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:25:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2128871065, now seen corresponding path program 71 times [2022-01-18 09:25:58,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:25:58,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817995336] [2022-01-18 09:25:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:25:58,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:25:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:25:59,181 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 09:25:59,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:25:59,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817995336] [2022-01-18 09:25:59,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817995336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:25:59,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:25:59,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:25:59,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573807715] [2022-01-18 09:25:59,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:25:59,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:25:59,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:25:59,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:25:59,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:25:59,183 INFO L87 Difference]: Start difference. First operand 2389 states and 6084 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:01,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:01,559 INFO L93 Difference]: Finished difference Result 3157 states and 7885 transitions. [2022-01-18 09:26:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:26:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:01,563 INFO L225 Difference]: With dead ends: 3157 [2022-01-18 09:26:01,563 INFO L226 Difference]: Without dead ends: 3008 [2022-01-18 09:26:01,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:26:01,563 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1011 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:01,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 3021 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:26:01,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-01-18 09:26:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2473. [2022-01-18 09:26:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 2.55542071197411) internal successors, (6317), 2472 states have internal predecessors, (6317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 6317 transitions. [2022-01-18 09:26:01,589 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 6317 transitions. Word has length 137 [2022-01-18 09:26:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:01,589 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 6317 transitions. [2022-01-18 09:26:01,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 6317 transitions. [2022-01-18 09:26:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:01,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:01,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:01,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 09:26:01,592 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:01,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:01,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1109071953, now seen corresponding path program 72 times [2022-01-18 09:26:01,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:01,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867890570] [2022-01-18 09:26:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:01,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:02,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:02,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867890570] [2022-01-18 09:26:02,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867890570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:02,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:02,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:02,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443576143] [2022-01-18 09:26:02,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:02,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:02,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=837, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:02,516 INFO L87 Difference]: Start difference. First operand 2473 states and 6317 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:04,887 INFO L93 Difference]: Finished difference Result 3371 states and 8451 transitions. [2022-01-18 09:26:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:26:04,888 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:04,892 INFO L225 Difference]: With dead ends: 3371 [2022-01-18 09:26:04,892 INFO L226 Difference]: Without dead ends: 3237 [2022-01-18 09:26:04,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=566, Invalid=2740, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:26:04,892 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1283 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:04,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 3201 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:26:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2022-01-18 09:26:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 2669. [2022-01-18 09:26:04,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.5513493253373314) internal successors, (6807), 2668 states have internal predecessors, (6807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6807 transitions. [2022-01-18 09:26:04,917 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6807 transitions. Word has length 137 [2022-01-18 09:26:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:04,917 INFO L470 AbstractCegarLoop]: Abstraction has 2669 states and 6807 transitions. [2022-01-18 09:26:04,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6807 transitions. [2022-01-18 09:26:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:04,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:04,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:04,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 09:26:04,920 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1461100399, now seen corresponding path program 73 times [2022-01-18 09:26:04,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:04,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083911675] [2022-01-18 09:26:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:04,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:05,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:05,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083911675] [2022-01-18 09:26:05,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083911675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:05,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:05,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:05,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337821155] [2022-01-18 09:26:05,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:05,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:05,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:05,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:05,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:05,778 INFO L87 Difference]: Start difference. First operand 2669 states and 6807 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:08,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:08,205 INFO L93 Difference]: Finished difference Result 3635 states and 9041 transitions. [2022-01-18 09:26:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:26:08,205 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:08,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:08,209 INFO L225 Difference]: With dead ends: 3635 [2022-01-18 09:26:08,209 INFO L226 Difference]: Without dead ends: 2982 [2022-01-18 09:26:08,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=641, Invalid=3141, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 09:26:08,209 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1399 mSDsluCounter, 3082 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:08,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1399 Valid, 3210 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:26:08,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-01-18 09:26:08,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2403. [2022-01-18 09:26:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.5445462114904247) internal successors, (6112), 2402 states have internal predecessors, (6112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6112 transitions. [2022-01-18 09:26:08,231 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6112 transitions. Word has length 137 [2022-01-18 09:26:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:08,231 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6112 transitions. [2022-01-18 09:26:08,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6112 transitions. [2022-01-18 09:26:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:08,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:08,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:08,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 09:26:08,234 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 910761335, now seen corresponding path program 74 times [2022-01-18 09:26:08,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:08,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658073179] [2022-01-18 09:26:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:08,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:08,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:08,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658073179] [2022-01-18 09:26:08,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658073179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:08,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:08,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:26:08,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625276547] [2022-01-18 09:26:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:08,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:26:08,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:08,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:26:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:26:08,930 INFO L87 Difference]: Start difference. First operand 2403 states and 6112 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:11,191 INFO L93 Difference]: Finished difference Result 2823 states and 6994 transitions. [2022-01-18 09:26:11,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:26:11,192 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:11,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:11,195 INFO L225 Difference]: With dead ends: 2823 [2022-01-18 09:26:11,195 INFO L226 Difference]: Without dead ends: 2674 [2022-01-18 09:26:11,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=551, Invalid=2529, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:26:11,196 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 1127 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:11,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 2482 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:11,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-01-18 09:26:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2405. [2022-01-18 09:26:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 2.543677204658902) internal successors, (6115), 2404 states have internal predecessors, (6115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 6115 transitions. [2022-01-18 09:26:11,218 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 6115 transitions. Word has length 137 [2022-01-18 09:26:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:11,218 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 6115 transitions. [2022-01-18 09:26:11,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 6115 transitions. [2022-01-18 09:26:11,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:11,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:11,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:11,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 09:26:11,220 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:11,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:11,220 INFO L85 PathProgramCache]: Analyzing trace with hash -259728395, now seen corresponding path program 75 times [2022-01-18 09:26:11,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:11,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887155406] [2022-01-18 09:26:11,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:11,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:11,949 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 09:26:11,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:11,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887155406] [2022-01-18 09:26:11,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887155406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:11,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:11,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:26:11,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177223916] [2022-01-18 09:26:11,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:11,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:26:11,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:26:11,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:26:11,950 INFO L87 Difference]: Start difference. First operand 2405 states and 6115 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:14,237 INFO L93 Difference]: Finished difference Result 2751 states and 6841 transitions. [2022-01-18 09:26:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:26:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:14,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:14,241 INFO L225 Difference]: With dead ends: 2751 [2022-01-18 09:26:14,241 INFO L226 Difference]: Without dead ends: 2613 [2022-01-18 09:26:14,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=558, Invalid=2522, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:26:14,242 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 949 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:14,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 2610 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2022-01-18 09:26:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2403. [2022-01-18 09:26:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.544129891756869) internal successors, (6111), 2402 states have internal predecessors, (6111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6111 transitions. [2022-01-18 09:26:14,271 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6111 transitions. Word has length 137 [2022-01-18 09:26:14,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:14,271 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6111 transitions. [2022-01-18 09:26:14,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:14,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6111 transitions. [2022-01-18 09:26:14,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:14,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:14,273 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:14,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 09:26:14,274 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:14,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:14,274 INFO L85 PathProgramCache]: Analyzing trace with hash 510250001, now seen corresponding path program 76 times [2022-01-18 09:26:14,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:14,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958469375] [2022-01-18 09:26:14,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:14,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:15,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:15,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958469375] [2022-01-18 09:26:15,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958469375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:15,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:15,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:26:15,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177815006] [2022-01-18 09:26:15,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:15,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:26:15,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:15,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:26:15,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:26:15,574 INFO L87 Difference]: Start difference. First operand 2403 states and 6111 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:18,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:18,781 INFO L93 Difference]: Finished difference Result 3049 states and 7587 transitions. [2022-01-18 09:26:18,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:26:18,782 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:18,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:18,785 INFO L225 Difference]: With dead ends: 3049 [2022-01-18 09:26:18,785 INFO L226 Difference]: Without dead ends: 2915 [2022-01-18 09:26:18,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:26:18,786 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 1210 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 1929 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:18,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 3480 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1929 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:26:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2022-01-18 09:26:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2613. [2022-01-18 09:26:18,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.5379019908116387) internal successors, (6629), 2612 states have internal predecessors, (6629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6629 transitions. [2022-01-18 09:26:18,811 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6629 transitions. Word has length 137 [2022-01-18 09:26:18,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:18,811 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6629 transitions. [2022-01-18 09:26:18,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:18,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6629 transitions. [2022-01-18 09:26:18,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:18,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:18,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:18,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 09:26:18,814 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:18,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1902260917, now seen corresponding path program 77 times [2022-01-18 09:26:18,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:18,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067848837] [2022-01-18 09:26:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:18,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:19,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:19,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067848837] [2022-01-18 09:26:19,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067848837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:19,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:19,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:19,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212020228] [2022-01-18 09:26:19,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:19,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:19,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:19,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:19,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:19,753 INFO L87 Difference]: Start difference. First operand 2613 states and 6629 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:22,378 INFO L93 Difference]: Finished difference Result 3313 states and 8177 transitions. [2022-01-18 09:26:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:26:22,378 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:22,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:22,381 INFO L225 Difference]: With dead ends: 3313 [2022-01-18 09:26:22,381 INFO L226 Difference]: Without dead ends: 2730 [2022-01-18 09:26:22,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=669, Invalid=3237, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 09:26:22,382 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1401 mSDsluCounter, 3654 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:22,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1401 Valid, 3775 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:26:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2022-01-18 09:26:22,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2417. [2022-01-18 09:26:22,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 2.535182119205298) internal successors, (6125), 2416 states have internal predecessors, (6125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6125 transitions. [2022-01-18 09:26:22,404 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6125 transitions. Word has length 137 [2022-01-18 09:26:22,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:22,404 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 6125 transitions. [2022-01-18 09:26:22,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6125 transitions. [2022-01-18 09:26:22,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:22,406 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:22,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:22,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 09:26:22,407 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:22,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:22,407 INFO L85 PathProgramCache]: Analyzing trace with hash 748050803, now seen corresponding path program 78 times [2022-01-18 09:26:22,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:22,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575569487] [2022-01-18 09:26:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:22,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:23,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:23,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575569487] [2022-01-18 09:26:23,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575569487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:23,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:23,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:23,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850780251] [2022-01-18 09:26:23,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:23,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:23,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:23,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:23,231 INFO L87 Difference]: Start difference. First operand 2417 states and 6125 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:25,433 INFO L93 Difference]: Finished difference Result 2763 states and 6851 transitions. [2022-01-18 09:26:25,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:26:25,434 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:25,437 INFO L225 Difference]: With dead ends: 2763 [2022-01-18 09:26:25,437 INFO L226 Difference]: Without dead ends: 2599 [2022-01-18 09:26:25,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=587, Invalid=2719, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:26:25,438 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1249 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:25,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 2567 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2022-01-18 09:26:25,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2389. [2022-01-18 09:26:25,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2388 states have (on average 2.5418760469011725) internal successors, (6070), 2388 states have internal predecessors, (6070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:25,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 6070 transitions. [2022-01-18 09:26:25,459 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 6070 transitions. Word has length 137 [2022-01-18 09:26:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:25,459 INFO L470 AbstractCegarLoop]: Abstraction has 2389 states and 6070 transitions. [2022-01-18 09:26:25,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:25,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 6070 transitions. [2022-01-18 09:26:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:25,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:25,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:25,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 09:26:25,462 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:25,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash -881860401, now seen corresponding path program 79 times [2022-01-18 09:26:25,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:25,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861359916] [2022-01-18 09:26:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:25,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:26,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:26,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:26,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861359916] [2022-01-18 09:26:26,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861359916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:26,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:26,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:26,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135497455] [2022-01-18 09:26:26,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:26,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:26,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:26,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:26,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:26,295 INFO L87 Difference]: Start difference. First operand 2389 states and 6070 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:28,436 INFO L93 Difference]: Finished difference Result 3145 states and 7774 transitions. [2022-01-18 09:26:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:26:28,437 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:28,440 INFO L225 Difference]: With dead ends: 3145 [2022-01-18 09:26:28,440 INFO L226 Difference]: Without dead ends: 3011 [2022-01-18 09:26:28,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=550, Invalid=2642, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:26:28,441 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 1252 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:28,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1252 Valid, 2699 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:26:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2022-01-18 09:26:28,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2655. [2022-01-18 09:26:28,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.5297663903541823) internal successors, (6714), 2654 states have internal predecessors, (6714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:28,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6714 transitions. [2022-01-18 09:26:28,467 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6714 transitions. Word has length 137 [2022-01-18 09:26:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:28,467 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 6714 transitions. [2022-01-18 09:26:28,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:28,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6714 transitions. [2022-01-18 09:26:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:28,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:28,470 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:28,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 09:26:28,470 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:28,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:28,470 INFO L85 PathProgramCache]: Analyzing trace with hash 510150515, now seen corresponding path program 80 times [2022-01-18 09:26:28,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:28,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892201800] [2022-01-18 09:26:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:28,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:29,518 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 09:26:29,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:29,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892201800] [2022-01-18 09:26:29,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892201800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:29,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:29,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:26:29,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99858750] [2022-01-18 09:26:29,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:29,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:26:29,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:29,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:26:29,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:26:29,519 INFO L87 Difference]: Start difference. First operand 2655 states and 6714 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:32,639 INFO L93 Difference]: Finished difference Result 3409 states and 8364 transitions. [2022-01-18 09:26:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 09:26:32,639 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:32,642 INFO L225 Difference]: With dead ends: 3409 [2022-01-18 09:26:32,642 INFO L226 Difference]: Without dead ends: 2826 [2022-01-18 09:26:32,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1056 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=824, Invalid=4146, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 09:26:32,643 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1583 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:32,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 3460 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:26:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2022-01-18 09:26:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2459. [2022-01-18 09:26:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2458 states have (on average 2.526444263628967) internal successors, (6210), 2458 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 6210 transitions. [2022-01-18 09:26:32,665 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 6210 transitions. Word has length 137 [2022-01-18 09:26:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:32,666 INFO L470 AbstractCegarLoop]: Abstraction has 2459 states and 6210 transitions. [2022-01-18 09:26:32,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 6210 transitions. [2022-01-18 09:26:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:32,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:32,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:32,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 09:26:32,668 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:32,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:32,668 INFO L85 PathProgramCache]: Analyzing trace with hash -644059599, now seen corresponding path program 81 times [2022-01-18 09:26:32,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:32,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720298191] [2022-01-18 09:26:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:32,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:33,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:33,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720298191] [2022-01-18 09:26:33,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720298191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:33,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:33,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:33,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022662263] [2022-01-18 09:26:33,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:33,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:33,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:33,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:33,552 INFO L87 Difference]: Start difference. First operand 2459 states and 6210 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:35,695 INFO L93 Difference]: Finished difference Result 2861 states and 7041 transitions. [2022-01-18 09:26:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:26:35,695 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:35,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:35,698 INFO L225 Difference]: With dead ends: 2861 [2022-01-18 09:26:35,698 INFO L226 Difference]: Without dead ends: 2711 [2022-01-18 09:26:35,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=564, Invalid=2628, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:26:35,699 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1351 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:35,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1351 Valid, 2482 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:35,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-01-18 09:26:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2445. [2022-01-18 09:26:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2444 states have (on average 2.5294599018003274) internal successors, (6182), 2444 states have internal predecessors, (6182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6182 transitions. [2022-01-18 09:26:35,724 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6182 transitions. Word has length 137 [2022-01-18 09:26:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:35,724 INFO L470 AbstractCegarLoop]: Abstraction has 2445 states and 6182 transitions. [2022-01-18 09:26:35,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6182 transitions. [2022-01-18 09:26:35,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:35,728 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:35,728 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:35,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 09:26:35,728 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:35,728 INFO L85 PathProgramCache]: Analyzing trace with hash 132036235, now seen corresponding path program 82 times [2022-01-18 09:26:35,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:35,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856350307] [2022-01-18 09:26:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:35,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:36,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:36,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856350307] [2022-01-18 09:26:36,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856350307] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:36,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:36,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:36,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842280369] [2022-01-18 09:26:36,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:36,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:36,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:36,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:36,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:36,657 INFO L87 Difference]: Start difference. First operand 2445 states and 6182 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:38,901 INFO L93 Difference]: Finished difference Result 2859 states and 7033 transitions. [2022-01-18 09:26:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:26:38,901 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:38,904 INFO L225 Difference]: With dead ends: 2859 [2022-01-18 09:26:38,905 INFO L226 Difference]: Without dead ends: 2633 [2022-01-18 09:26:38,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:26:38,905 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 1271 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:38,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1271 Valid, 2662 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:26:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2022-01-18 09:26:38,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2363. [2022-01-18 09:26:38,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 2.530906011854361) internal successors, (5978), 2362 states have internal predecessors, (5978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 5978 transitions. [2022-01-18 09:26:38,927 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 5978 transitions. Word has length 137 [2022-01-18 09:26:38,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:38,927 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 5978 transitions. [2022-01-18 09:26:38,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:38,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 5978 transitions. [2022-01-18 09:26:38,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:38,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:38,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:38,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 09:26:38,929 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:38,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:38,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1431340775, now seen corresponding path program 83 times [2022-01-18 09:26:38,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:38,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818039372] [2022-01-18 09:26:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:38,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:39,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:39,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818039372] [2022-01-18 09:26:39,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818039372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:39,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:39,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:26:39,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67872583] [2022-01-18 09:26:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:39,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:26:39,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:26:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:26:39,723 INFO L87 Difference]: Start difference. First operand 2363 states and 5978 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:41,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:41,780 INFO L93 Difference]: Finished difference Result 2734 states and 6745 transitions. [2022-01-18 09:26:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:26:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:41,783 INFO L225 Difference]: With dead ends: 2734 [2022-01-18 09:26:41,783 INFO L226 Difference]: Without dead ends: 2625 [2022-01-18 09:26:41,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:26:41,784 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 1023 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:41,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 2585 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:41,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2022-01-18 09:26:41,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2403. [2022-01-18 09:26:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.5208159866777686) internal successors, (6055), 2402 states have internal predecessors, (6055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6055 transitions. [2022-01-18 09:26:41,805 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6055 transitions. Word has length 137 [2022-01-18 09:26:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:41,805 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6055 transitions. [2022-01-18 09:26:41,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6055 transitions. [2022-01-18 09:26:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:41,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:41,808 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:41,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 09:26:41,808 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1886357159, now seen corresponding path program 84 times [2022-01-18 09:26:41,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:41,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911109012] [2022-01-18 09:26:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:41,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:42,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:42,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911109012] [2022-01-18 09:26:42,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911109012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:42,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:42,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:26:42,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306153745] [2022-01-18 09:26:42,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:42,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:26:42,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:42,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:26:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:26:42,484 INFO L87 Difference]: Start difference. First operand 2403 states and 6055 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:44,660 INFO L93 Difference]: Finished difference Result 2742 states and 6760 transitions. [2022-01-18 09:26:44,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:26:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:44,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:44,664 INFO L225 Difference]: With dead ends: 2742 [2022-01-18 09:26:44,664 INFO L226 Difference]: Without dead ends: 2641 [2022-01-18 09:26:44,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:26:44,664 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 916 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:44,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [916 Valid, 2572 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:44,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2022-01-18 09:26:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2417. [2022-01-18 09:26:44,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 2.517384105960265) internal successors, (6082), 2416 states have internal predecessors, (6082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6082 transitions. [2022-01-18 09:26:44,687 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6082 transitions. Word has length 137 [2022-01-18 09:26:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:44,687 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 6082 transitions. [2022-01-18 09:26:44,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6082 transitions. [2022-01-18 09:26:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:44,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:44,690 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:44,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 09:26:44,690 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:44,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:44,690 INFO L85 PathProgramCache]: Analyzing trace with hash -552618791, now seen corresponding path program 85 times [2022-01-18 09:26:44,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:44,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998416452] [2022-01-18 09:26:44,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:44,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:45,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:45,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998416452] [2022-01-18 09:26:45,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998416452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:45,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:45,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:26:45,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355413319] [2022-01-18 09:26:45,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:45,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:26:45,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:26:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:26:45,410 INFO L87 Difference]: Start difference. First operand 2417 states and 6082 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:47,496 INFO L93 Difference]: Finished difference Result 3000 states and 7422 transitions. [2022-01-18 09:26:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:26:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:47,500 INFO L225 Difference]: With dead ends: 3000 [2022-01-18 09:26:47,500 INFO L226 Difference]: Without dead ends: 2901 [2022-01-18 09:26:47,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:26:47,500 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1248 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:47,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2409 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-01-18 09:26:47,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 2613. [2022-01-18 09:26:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.5160796324655434) internal successors, (6572), 2612 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6572 transitions. [2022-01-18 09:26:47,525 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6572 transitions. Word has length 137 [2022-01-18 09:26:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:47,525 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6572 transitions. [2022-01-18 09:26:47,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6572 transitions. [2022-01-18 09:26:47,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:47,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:47,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:47,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 09:26:47,527 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:47,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash -344564647, now seen corresponding path program 86 times [2022-01-18 09:26:47,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:47,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651283560] [2022-01-18 09:26:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:47,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:48,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:48,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651283560] [2022-01-18 09:26:48,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651283560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:48,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:48,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:48,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195689954] [2022-01-18 09:26:48,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:48,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:48,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:48,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:48,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:48,407 INFO L87 Difference]: Start difference. First operand 2613 states and 6572 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:50,634 INFO L93 Difference]: Finished difference Result 3203 states and 7909 transitions. [2022-01-18 09:26:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:26:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:50,638 INFO L225 Difference]: With dead ends: 3203 [2022-01-18 09:26:50,638 INFO L226 Difference]: Without dead ends: 2928 [2022-01-18 09:26:50,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:26:50,638 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 1175 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:50,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 3645 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:26:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2022-01-18 09:26:50,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2655. [2022-01-18 09:26:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.5026375282592315) internal successors, (6642), 2654 states have internal predecessors, (6642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6642 transitions. [2022-01-18 09:26:50,665 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6642 transitions. Word has length 137 [2022-01-18 09:26:50,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:50,665 INFO L470 AbstractCegarLoop]: Abstraction has 2655 states and 6642 transitions. [2022-01-18 09:26:50,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6642 transitions. [2022-01-18 09:26:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:50,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:50,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:50,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 09:26:50,668 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:50,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:50,668 INFO L85 PathProgramCache]: Analyzing trace with hash 600627383, now seen corresponding path program 87 times [2022-01-18 09:26:50,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:50,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916255496] [2022-01-18 09:26:50,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:50,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:51,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:51,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916255496] [2022-01-18 09:26:51,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916255496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:51,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:51,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:26:51,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633620732] [2022-01-18 09:26:51,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:51,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:26:51,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:26:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=832, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:26:51,590 INFO L87 Difference]: Start difference. First operand 2655 states and 6642 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:53,799 INFO L93 Difference]: Finished difference Result 2999 states and 7362 transitions. [2022-01-18 09:26:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:26:53,799 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:53,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:53,802 INFO L225 Difference]: With dead ends: 2999 [2022-01-18 09:26:53,802 INFO L226 Difference]: Without dead ends: 2606 [2022-01-18 09:26:53,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=576, Invalid=2730, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:26:53,803 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 1167 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:53,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 3068 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:53,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-01-18 09:26:53,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2333. [2022-01-18 09:26:53,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 2332 states have (on average 2.532590051457976) internal successors, (5906), 2332 states have internal predecessors, (5906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:53,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 5906 transitions. [2022-01-18 09:26:53,824 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 5906 transitions. Word has length 137 [2022-01-18 09:26:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:53,824 INFO L470 AbstractCegarLoop]: Abstraction has 2333 states and 5906 transitions. [2022-01-18 09:26:53,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 5906 transitions. [2022-01-18 09:26:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:53,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:53,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:53,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 09:26:53,826 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:53,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:53,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1625746031, now seen corresponding path program 88 times [2022-01-18 09:26:53,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:53,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931515539] [2022-01-18 09:26:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:53,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:54,567 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 09:26:54,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:54,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931515539] [2022-01-18 09:26:54,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931515539] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:54,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:54,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:26:54,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31222705] [2022-01-18 09:26:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:54,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:26:54,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:26:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:26:54,568 INFO L87 Difference]: Start difference. First operand 2333 states and 5906 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:56,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:56,695 INFO L93 Difference]: Finished difference Result 2704 states and 6719 transitions. [2022-01-18 09:26:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:26:56,695 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:56,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:56,698 INFO L225 Difference]: With dead ends: 2704 [2022-01-18 09:26:56,698 INFO L226 Difference]: Without dead ends: 2595 [2022-01-18 09:26:56,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:26:56,699 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 926 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:56,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 2284 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:26:56,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2022-01-18 09:26:56,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2399. [2022-01-18 09:26:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.542535446205171) internal successors, (6097), 2398 states have internal predecessors, (6097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6097 transitions. [2022-01-18 09:26:56,720 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6097 transitions. Word has length 137 [2022-01-18 09:26:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:56,720 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6097 transitions. [2022-01-18 09:26:56,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6097 transitions. [2022-01-18 09:26:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:56,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:56,722 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:56,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 09:26:56,722 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:56,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:56,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1063228835, now seen corresponding path program 89 times [2022-01-18 09:26:56,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:56,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063810448] [2022-01-18 09:26:56,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:56,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:26:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:26:57,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:26:57,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063810448] [2022-01-18 09:26:57,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063810448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:26:57,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:26:57,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:26:57,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181069944] [2022-01-18 09:26:57,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:26:57,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:26:57,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:26:57,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:26:57,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:26:57,475 INFO L87 Difference]: Start difference. First operand 2399 states and 6097 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:26:59,589 INFO L93 Difference]: Finished difference Result 2664 states and 6629 transitions. [2022-01-18 09:26:59,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:26:59,590 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:26:59,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:26:59,593 INFO L225 Difference]: With dead ends: 2664 [2022-01-18 09:26:59,593 INFO L226 Difference]: Without dead ends: 2561 [2022-01-18 09:26:59,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:26:59,593 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 1032 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 2193 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:26:59,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 2193 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:26:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-18 09:26:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2397. [2022-01-18 09:26:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2396 states have (on average 2.5425709515859767) internal successors, (6092), 2396 states have internal predecessors, (6092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 6092 transitions. [2022-01-18 09:26:59,615 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 6092 transitions. Word has length 137 [2022-01-18 09:26:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:26:59,615 INFO L470 AbstractCegarLoop]: Abstraction has 2397 states and 6092 transitions. [2022-01-18 09:26:59,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:26:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 6092 transitions. [2022-01-18 09:26:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:26:59,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:26:59,638 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:26:59,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 09:26:59,639 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:26:59,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:26:59,644 INFO L85 PathProgramCache]: Analyzing trace with hash 203267157, now seen corresponding path program 90 times [2022-01-18 09:26:59,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:26:59,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133597697] [2022-01-18 09:26:59,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:26:59,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:26:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:00,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:00,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133597697] [2022-01-18 09:27:00,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133597697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:00,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:00,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:00,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233176917] [2022-01-18 09:27:00,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:00,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:00,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:00,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:00,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:00,320 INFO L87 Difference]: Start difference. First operand 2397 states and 6092 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:02,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:02,426 INFO L93 Difference]: Finished difference Result 2676 states and 6647 transitions. [2022-01-18 09:27:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:27:02,426 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:02,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:02,429 INFO L225 Difference]: With dead ends: 2676 [2022-01-18 09:27:02,429 INFO L226 Difference]: Without dead ends: 2563 [2022-01-18 09:27:02,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:27:02,429 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 1016 mSDsluCounter, 2464 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:02,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 2563 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:27:02,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2022-01-18 09:27:02,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2393. [2022-01-18 09:27:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2392 states have (on average 2.5405518394648827) internal successors, (6077), 2392 states have internal predecessors, (6077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 6077 transitions. [2022-01-18 09:27:02,451 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 6077 transitions. Word has length 137 [2022-01-18 09:27:02,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:02,451 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 6077 transitions. [2022-01-18 09:27:02,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 6077 transitions. [2022-01-18 09:27:02,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:02,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:02,454 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:02,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 09:27:02,454 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:02,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash 405140015, now seen corresponding path program 91 times [2022-01-18 09:27:02,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:02,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83883229] [2022-01-18 09:27:02,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:02,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:03,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83883229] [2022-01-18 09:27:03,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83883229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:03,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:03,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:03,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216569112] [2022-01-18 09:27:03,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:03,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:03,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:03,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:03,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:03,169 INFO L87 Difference]: Start difference. First operand 2393 states and 6077 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:05,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:05,352 INFO L93 Difference]: Finished difference Result 2720 states and 6760 transitions. [2022-01-18 09:27:05,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:27:05,352 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:05,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:05,355 INFO L225 Difference]: With dead ends: 2720 [2022-01-18 09:27:05,355 INFO L226 Difference]: Without dead ends: 2611 [2022-01-18 09:27:05,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=568, Invalid=2624, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:27:05,356 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1257 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:05,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 2498 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2022-01-18 09:27:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2409. [2022-01-18 09:27:05,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2408 states have (on average 2.542358803986711) internal successors, (6122), 2408 states have internal predecessors, (6122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 6122 transitions. [2022-01-18 09:27:05,378 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 6122 transitions. Word has length 137 [2022-01-18 09:27:05,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:05,378 INFO L470 AbstractCegarLoop]: Abstraction has 2409 states and 6122 transitions. [2022-01-18 09:27:05,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:05,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 6122 transitions. [2022-01-18 09:27:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:05,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:05,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:05,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 09:27:05,381 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:05,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:05,381 INFO L85 PathProgramCache]: Analyzing trace with hash -157377181, now seen corresponding path program 92 times [2022-01-18 09:27:05,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:05,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284983403] [2022-01-18 09:27:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:05,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:06,086 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 09:27:06,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:06,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284983403] [2022-01-18 09:27:06,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284983403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:06,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:06,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:06,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761282087] [2022-01-18 09:27:06,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:06,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:06,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:06,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:06,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:06,087 INFO L87 Difference]: Start difference. First operand 2409 states and 6122 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:08,297 INFO L93 Difference]: Finished difference Result 2680 states and 6670 transitions. [2022-01-18 09:27:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:27:08,297 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:08,300 INFO L225 Difference]: With dead ends: 2680 [2022-01-18 09:27:08,300 INFO L226 Difference]: Without dead ends: 2577 [2022-01-18 09:27:08,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=581, Invalid=2611, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:27:08,301 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 899 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:08,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 2682 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2022-01-18 09:27:08,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2407. [2022-01-18 09:27:08,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2406 states have (on average 2.542809642560266) internal successors, (6118), 2406 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 6118 transitions. [2022-01-18 09:27:08,322 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 6118 transitions. Word has length 137 [2022-01-18 09:27:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:08,322 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 6118 transitions. [2022-01-18 09:27:08,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 6118 transitions. [2022-01-18 09:27:08,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:08,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:08,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:08,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 09:27:08,326 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:08,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:08,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1198643537, now seen corresponding path program 93 times [2022-01-18 09:27:08,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:08,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282961327] [2022-01-18 09:27:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:08,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:09,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282961327] [2022-01-18 09:27:09,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282961327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:09,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:09,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:09,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609188804] [2022-01-18 09:27:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:09,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:09,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:09,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:09,057 INFO L87 Difference]: Start difference. First operand 2407 states and 6118 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:11,233 INFO L93 Difference]: Finished difference Result 3032 states and 7571 transitions. [2022-01-18 09:27:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:27:11,233 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:11,237 INFO L225 Difference]: With dead ends: 3032 [2022-01-18 09:27:11,237 INFO L226 Difference]: Without dead ends: 2923 [2022-01-18 09:27:11,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=543, Invalid=2537, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:27:11,238 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1111 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:11,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2644 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:11,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-01-18 09:27:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2477. [2022-01-18 09:27:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2476 states have (on average 2.5480613893376414) internal successors, (6309), 2476 states have internal predecessors, (6309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 6309 transitions. [2022-01-18 09:27:11,261 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 6309 transitions. Word has length 137 [2022-01-18 09:27:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:11,261 INFO L470 AbstractCegarLoop]: Abstraction has 2477 states and 6309 transitions. [2022-01-18 09:27:11,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 6309 transitions. [2022-01-18 09:27:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:11,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:11,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:11,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 09:27:11,263 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:11,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:11,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1640752977, now seen corresponding path program 94 times [2022-01-18 09:27:11,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:11,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168181555] [2022-01-18 09:27:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:11,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:12,001 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 09:27:12,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:12,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168181555] [2022-01-18 09:27:12,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168181555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:12,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:12,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:12,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530329117] [2022-01-18 09:27:12,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:12,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:12,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:12,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:12,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:12,002 INFO L87 Difference]: Start difference. First operand 2477 states and 6309 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:14,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:14,337 INFO L93 Difference]: Finished difference Result 3266 states and 8172 transitions. [2022-01-18 09:27:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:27:14,337 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:14,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:14,341 INFO L225 Difference]: With dead ends: 3266 [2022-01-18 09:27:14,341 INFO L226 Difference]: Without dead ends: 3167 [2022-01-18 09:27:14,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:27:14,342 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 1206 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:14,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1206 Valid, 3155 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:27:14,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-01-18 09:27:14,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2673. [2022-01-18 09:27:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 2.5445359281437128) internal successors, (6799), 2672 states have internal predecessors, (6799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 6799 transitions. [2022-01-18 09:27:14,368 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 6799 transitions. Word has length 137 [2022-01-18 09:27:14,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:14,368 INFO L470 AbstractCegarLoop]: Abstraction has 2673 states and 6799 transitions. [2022-01-18 09:27:14,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 6799 transitions. [2022-01-18 09:27:14,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:14,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:14,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:14,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 09:27:14,370 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:14,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1406424913, now seen corresponding path program 95 times [2022-01-18 09:27:14,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:14,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044241906] [2022-01-18 09:27:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:14,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:15,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:15,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044241906] [2022-01-18 09:27:15,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044241906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:15,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:15,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:27:15,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730635685] [2022-01-18 09:27:15,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:15,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:27:15,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:15,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:27:15,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:15,339 INFO L87 Difference]: Start difference. First operand 2673 states and 6799 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:17,981 INFO L93 Difference]: Finished difference Result 3469 states and 8659 transitions. [2022-01-18 09:27:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:27:17,981 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:17,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:17,985 INFO L225 Difference]: With dead ends: 3469 [2022-01-18 09:27:17,985 INFO L226 Difference]: Without dead ends: 3194 [2022-01-18 09:27:17,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=731, Invalid=3429, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 09:27:17,986 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1229 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:17,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 3176 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2022-01-18 09:27:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2715. [2022-01-18 09:27:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2714 states have (on average 2.5309506263817245) internal successors, (6869), 2714 states have internal predecessors, (6869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 6869 transitions. [2022-01-18 09:27:18,010 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 6869 transitions. Word has length 137 [2022-01-18 09:27:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:18,010 INFO L470 AbstractCegarLoop]: Abstraction has 2715 states and 6869 transitions. [2022-01-18 09:27:18,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 6869 transitions. [2022-01-18 09:27:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:18,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:18,012 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:18,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 09:27:18,012 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:18,012 INFO L85 PathProgramCache]: Analyzing trace with hash -461232883, now seen corresponding path program 96 times [2022-01-18 09:27:18,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:18,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836962392] [2022-01-18 09:27:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:18,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:18,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:18,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:18,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836962392] [2022-01-18 09:27:18,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836962392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:18,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:18,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:27:18,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534002931] [2022-01-18 09:27:18,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:18,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:27:18,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:18,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:27:18,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:27:18,957 INFO L87 Difference]: Start difference. First operand 2715 states and 6869 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:21,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:21,416 INFO L93 Difference]: Finished difference Result 3265 states and 8112 transitions. [2022-01-18 09:27:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:27:21,416 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:21,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:21,420 INFO L225 Difference]: With dead ends: 3265 [2022-01-18 09:27:21,420 INFO L226 Difference]: Without dead ends: 2886 [2022-01-18 09:27:21,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=701, Invalid=3459, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 09:27:21,420 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1385 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:21,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 3372 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:27:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2022-01-18 09:27:21,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2407. [2022-01-18 09:27:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2406 states have (on average 2.536990856192851) internal successors, (6104), 2406 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:21,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 6104 transitions. [2022-01-18 09:27:21,443 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 6104 transitions. Word has length 137 [2022-01-18 09:27:21,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:21,443 INFO L470 AbstractCegarLoop]: Abstraction has 2407 states and 6104 transitions. [2022-01-18 09:27:21,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 6104 transitions. [2022-01-18 09:27:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:21,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:21,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:21,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 09:27:21,445 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:21,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1933603811, now seen corresponding path program 97 times [2022-01-18 09:27:21,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:21,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367374057] [2022-01-18 09:27:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:21,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:22,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:22,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367374057] [2022-01-18 09:27:22,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367374057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:22,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:22,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:22,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744270475] [2022-01-18 09:27:22,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:22,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:22,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:22,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:22,130 INFO L87 Difference]: Start difference. First operand 2407 states and 6104 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:24,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:24,304 INFO L93 Difference]: Finished difference Result 2690 states and 6661 transitions. [2022-01-18 09:27:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:27:24,305 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:24,308 INFO L225 Difference]: With dead ends: 2690 [2022-01-18 09:27:24,308 INFO L226 Difference]: Without dead ends: 2589 [2022-01-18 09:27:24,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=580, Invalid=2612, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:27:24,309 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1191 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:24,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1191 Valid, 2597 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:24,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2022-01-18 09:27:24,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2421. [2022-01-18 09:27:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2420 states have (on average 2.533471074380165) internal successors, (6131), 2420 states have internal predecessors, (6131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 6131 transitions. [2022-01-18 09:27:24,330 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 6131 transitions. Word has length 137 [2022-01-18 09:27:24,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:24,330 INFO L470 AbstractCegarLoop]: Abstraction has 2421 states and 6131 transitions. [2022-01-18 09:27:24,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 6131 transitions. [2022-01-18 09:27:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:24,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:24,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:24,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 09:27:24,333 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:24,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1027625117, now seen corresponding path program 98 times [2022-01-18 09:27:24,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:24,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520503495] [2022-01-18 09:27:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:24,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:25,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:25,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520503495] [2022-01-18 09:27:25,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520503495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:25,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:25,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:25,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127583525] [2022-01-18 09:27:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:25,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:25,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:25,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:25,071 INFO L87 Difference]: Start difference. First operand 2421 states and 6131 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:27,302 INFO L93 Difference]: Finished difference Result 2950 states and 7326 transitions. [2022-01-18 09:27:27,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:27:27,302 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:27,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:27,305 INFO L225 Difference]: With dead ends: 2950 [2022-01-18 09:27:27,305 INFO L226 Difference]: Without dead ends: 2851 [2022-01-18 09:27:27,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=568, Invalid=2624, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:27:27,306 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 1099 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:27,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1099 Valid, 2755 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:27,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-01-18 09:27:27,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2617. [2022-01-18 09:27:27,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2616 states have (on average 2.5309633027522938) internal successors, (6621), 2616 states have internal predecessors, (6621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 6621 transitions. [2022-01-18 09:27:27,330 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 6621 transitions. Word has length 137 [2022-01-18 09:27:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:27,330 INFO L470 AbstractCegarLoop]: Abstraction has 2617 states and 6621 transitions. [2022-01-18 09:27:27,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:27,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 6621 transitions. [2022-01-18 09:27:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:27,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:27,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:27,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 09:27:27,332 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:27,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:27,333 INFO L85 PathProgramCache]: Analyzing trace with hash -819570973, now seen corresponding path program 99 times [2022-01-18 09:27:27,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:27,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154778407] [2022-01-18 09:27:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:27,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:28,191 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 09:27:28,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154778407] [2022-01-18 09:27:28,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154778407] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:28,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:28,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:27:28,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648063476] [2022-01-18 09:27:28,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:28,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:27:28,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:28,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:27:28,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:27:28,192 INFO L87 Difference]: Start difference. First operand 2617 states and 6621 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:30,476 INFO L93 Difference]: Finished difference Result 3153 states and 7813 transitions. [2022-01-18 09:27:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:27:30,476 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:30,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:30,480 INFO L225 Difference]: With dead ends: 3153 [2022-01-18 09:27:30,480 INFO L226 Difference]: Without dead ends: 2878 [2022-01-18 09:27:30,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 09:27:30,480 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1192 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:30,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1192 Valid, 3332 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2022-01-18 09:27:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2659. [2022-01-18 09:27:30,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 2.517306245297216) internal successors, (6691), 2658 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 6691 transitions. [2022-01-18 09:27:30,503 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 6691 transitions. Word has length 137 [2022-01-18 09:27:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:30,503 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 6691 transitions. [2022-01-18 09:27:30,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 6691 transitions. [2022-01-18 09:27:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:30,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:30,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:30,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 09:27:30,505 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:30,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:30,506 INFO L85 PathProgramCache]: Analyzing trace with hash 125621057, now seen corresponding path program 100 times [2022-01-18 09:27:30,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:30,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181678424] [2022-01-18 09:27:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:30,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:31,388 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 09:27:31,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:31,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181678424] [2022-01-18 09:27:31,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181678424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:31,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:31,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:27:31,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629240060] [2022-01-18 09:27:31,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:31,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:27:31,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:27:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=961, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:27:31,389 INFO L87 Difference]: Start difference. First operand 2659 states and 6691 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:34,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:34,076 INFO L93 Difference]: Finished difference Result 2949 states and 7266 transitions. [2022-01-18 09:27:34,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:27:34,077 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:34,080 INFO L225 Difference]: With dead ends: 2949 [2022-01-18 09:27:34,080 INFO L226 Difference]: Without dead ends: 2612 [2022-01-18 09:27:34,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=690, Invalid=3470, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 09:27:34,080 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1128 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:34,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 3911 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:27:34,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2022-01-18 09:27:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2393. [2022-01-18 09:27:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2392 states have (on average 2.5346989966555182) internal successors, (6063), 2392 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:34,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 6063 transitions. [2022-01-18 09:27:34,102 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 6063 transitions. Word has length 137 [2022-01-18 09:27:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:34,102 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 6063 transitions. [2022-01-18 09:27:34,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 6063 transitions. [2022-01-18 09:27:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:34,104 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:34,104 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:34,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 09:27:34,105 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:34,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:34,105 INFO L85 PathProgramCache]: Analyzing trace with hash 599168469, now seen corresponding path program 101 times [2022-01-18 09:27:34,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:34,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640780272] [2022-01-18 09:27:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:34,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:34,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:34,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640780272] [2022-01-18 09:27:34,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640780272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:34,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:34,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:34,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700380042] [2022-01-18 09:27:34,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:34,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:34,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:34,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:34,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:34,849 INFO L87 Difference]: Start difference. First operand 2393 states and 6063 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:36,904 INFO L93 Difference]: Finished difference Result 2688 states and 6633 transitions. [2022-01-18 09:27:36,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:27:36,905 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:36,908 INFO L225 Difference]: With dead ends: 2688 [2022-01-18 09:27:36,908 INFO L226 Difference]: Without dead ends: 2581 [2022-01-18 09:27:36,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:27:36,909 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 918 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:36,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2386 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2022-01-18 09:27:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2449. [2022-01-18 09:27:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2448 states have (on average 2.5269607843137254) internal successors, (6186), 2448 states have internal predecessors, (6186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:36,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 6186 transitions. [2022-01-18 09:27:36,932 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 6186 transitions. Word has length 137 [2022-01-18 09:27:36,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:36,932 INFO L470 AbstractCegarLoop]: Abstraction has 2449 states and 6186 transitions. [2022-01-18 09:27:36,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:36,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 6186 transitions. [2022-01-18 09:27:36,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:36,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:36,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:36,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 09:27:36,935 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:36,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:36,935 INFO L85 PathProgramCache]: Analyzing trace with hash 144152085, now seen corresponding path program 102 times [2022-01-18 09:27:36,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:36,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892540167] [2022-01-18 09:27:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:36,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:37,705 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 09:27:37,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:37,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892540167] [2022-01-18 09:27:37,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892540167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:37,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:37,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:37,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599769608] [2022-01-18 09:27:37,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:37,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:37,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:37,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:37,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:37,706 INFO L87 Difference]: Start difference. First operand 2449 states and 6186 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:39,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:39,978 INFO L93 Difference]: Finished difference Result 2690 states and 6638 transitions. [2022-01-18 09:27:39,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:27:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:39,981 INFO L225 Difference]: With dead ends: 2690 [2022-01-18 09:27:39,981 INFO L226 Difference]: Without dead ends: 2589 [2022-01-18 09:27:39,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:27:39,982 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1027 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:39,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 2833 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2022-01-18 09:27:39,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2463. [2022-01-18 09:27:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2462 states have (on average 2.5235580828594637) internal successors, (6213), 2462 states have internal predecessors, (6213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:40,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 6213 transitions. [2022-01-18 09:27:40,004 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 6213 transitions. Word has length 137 [2022-01-18 09:27:40,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:40,004 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 6213 transitions. [2022-01-18 09:27:40,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:40,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 6213 transitions. [2022-01-18 09:27:40,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:40,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:40,006 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:40,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 09:27:40,006 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:40,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:40,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1477890453, now seen corresponding path program 103 times [2022-01-18 09:27:40,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:40,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365792677] [2022-01-18 09:27:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:40,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:40,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:40,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365792677] [2022-01-18 09:27:40,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365792677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:40,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:40,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:27:40,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228161104] [2022-01-18 09:27:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:40,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:27:40,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:40,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:27:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:40,876 INFO L87 Difference]: Start difference. First operand 2463 states and 6213 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:43,370 INFO L93 Difference]: Finished difference Result 2948 states and 7300 transitions. [2022-01-18 09:27:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:27:43,370 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:43,374 INFO L225 Difference]: With dead ends: 2948 [2022-01-18 09:27:43,374 INFO L226 Difference]: Without dead ends: 2849 [2022-01-18 09:27:43,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=701, Invalid=3331, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:27:43,374 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 1417 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:43,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 2786 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:27:43,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-01-18 09:27:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2659. [2022-01-18 09:27:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2658 states have (on average 2.521820917983446) internal successors, (6703), 2658 states have internal predecessors, (6703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:43,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 6703 transitions. [2022-01-18 09:27:43,399 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 6703 transitions. Word has length 137 [2022-01-18 09:27:43,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:43,399 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 6703 transitions. [2022-01-18 09:27:43,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 6703 transitions. [2022-01-18 09:27:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:43,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:43,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:43,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 09:27:43,401 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:43,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:43,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1685944597, now seen corresponding path program 104 times [2022-01-18 09:27:43,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:43,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494484720] [2022-01-18 09:27:43,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:43,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:44,293 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 09:27:44,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:44,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494484720] [2022-01-18 09:27:44,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494484720] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:44,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:44,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:27:44,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015425892] [2022-01-18 09:27:44,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:44,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:27:44,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:27:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:27:44,294 INFO L87 Difference]: Start difference. First operand 2659 states and 6703 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:46,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:46,397 INFO L93 Difference]: Finished difference Result 3151 states and 7787 transitions. [2022-01-18 09:27:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:27:46,397 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:46,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:46,401 INFO L225 Difference]: With dead ends: 3151 [2022-01-18 09:27:46,401 INFO L226 Difference]: Without dead ends: 2876 [2022-01-18 09:27:46,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:27:46,402 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1315 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:46,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 3164 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:46,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2022-01-18 09:27:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 2701. [2022-01-18 09:27:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.5085185185185184) internal successors, (6773), 2700 states have internal predecessors, (6773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6773 transitions. [2022-01-18 09:27:46,426 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6773 transitions. Word has length 137 [2022-01-18 09:27:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:46,426 INFO L470 AbstractCegarLoop]: Abstraction has 2701 states and 6773 transitions. [2022-01-18 09:27:46,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:46,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6773 transitions. [2022-01-18 09:27:46,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:46,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:46,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:46,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 09:27:46,428 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:46,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:46,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1663830669, now seen corresponding path program 105 times [2022-01-18 09:27:46,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:46,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525194080] [2022-01-18 09:27:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:46,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:47,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:47,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525194080] [2022-01-18 09:27:47,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525194080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:47,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:47,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:27:47,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461820990] [2022-01-18 09:27:47,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:47,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:27:47,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:47,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:27:47,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:27:47,321 INFO L87 Difference]: Start difference. First operand 2701 states and 6773 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:50,085 INFO L93 Difference]: Finished difference Result 2947 states and 7240 transitions. [2022-01-18 09:27:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:27:50,086 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:50,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:50,089 INFO L225 Difference]: With dead ends: 2947 [2022-01-18 09:27:50,089 INFO L226 Difference]: Without dead ends: 2540 [2022-01-18 09:27:50,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=736, Invalid=3554, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:27:50,089 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 1559 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:50,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 2969 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:27:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2022-01-18 09:27:50,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2365. [2022-01-18 09:27:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2364 states have (on average 2.524534686971235) internal successors, (5968), 2364 states have internal predecessors, (5968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 5968 transitions. [2022-01-18 09:27:50,112 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 5968 transitions. Word has length 137 [2022-01-18 09:27:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:50,112 INFO L470 AbstractCegarLoop]: Abstraction has 2365 states and 5968 transitions. [2022-01-18 09:27:50,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 5968 transitions. [2022-01-18 09:27:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:50,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:50,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:50,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 09:27:50,114 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:50,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -308055753, now seen corresponding path program 106 times [2022-01-18 09:27:50,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:50,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918771813] [2022-01-18 09:27:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:50,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:50,809 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 09:27:50,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:50,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918771813] [2022-01-18 09:27:50,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918771813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:50,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:50,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:27:50,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383291674] [2022-01-18 09:27:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:50,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:27:50,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:50,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:27:50,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:27:50,810 INFO L87 Difference]: Start difference. First operand 2365 states and 5968 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:52,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:52,794 INFO L93 Difference]: Finished difference Result 2573 states and 6358 transitions. [2022-01-18 09:27:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:27:52,794 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:52,797 INFO L225 Difference]: With dead ends: 2573 [2022-01-18 09:27:52,797 INFO L226 Difference]: Without dead ends: 2427 [2022-01-18 09:27:52,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:27:52,798 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1064 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:52,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 2240 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:27:52,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2022-01-18 09:27:52,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2363. [2022-01-18 09:27:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 2.52497883149873) internal successors, (5964), 2362 states have internal predecessors, (5964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 5964 transitions. [2022-01-18 09:27:52,817 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 5964 transitions. Word has length 137 [2022-01-18 09:27:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:52,818 INFO L470 AbstractCegarLoop]: Abstraction has 2363 states and 5964 transitions. [2022-01-18 09:27:52,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 5964 transitions. [2022-01-18 09:27:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:52,820 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:52,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:52,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 09:27:52,820 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:52,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:52,820 INFO L85 PathProgramCache]: Analyzing trace with hash 7735223, now seen corresponding path program 107 times [2022-01-18 09:27:52,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:52,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306337191] [2022-01-18 09:27:52,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:52,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:53,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:53,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306337191] [2022-01-18 09:27:53,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306337191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:53,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:53,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:27:53,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647250045] [2022-01-18 09:27:53,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:53,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:27:53,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:53,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:27:53,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:27:53,538 INFO L87 Difference]: Start difference. First operand 2363 states and 5964 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:55,727 INFO L93 Difference]: Finished difference Result 2613 states and 6433 transitions. [2022-01-18 09:27:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:27:55,727 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:55,730 INFO L225 Difference]: With dead ends: 2613 [2022-01-18 09:27:55,730 INFO L226 Difference]: Without dead ends: 2469 [2022-01-18 09:27:55,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=513, Invalid=2349, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:27:55,731 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 1035 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:55,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 2602 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:27:55,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2022-01-18 09:27:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 2403. [2022-01-18 09:27:55,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2402 states have (on average 2.5149875104079933) internal successors, (6041), 2402 states have internal predecessors, (6041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:55,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6041 transitions. [2022-01-18 09:27:55,751 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6041 transitions. Word has length 137 [2022-01-18 09:27:55,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:55,751 INFO L470 AbstractCegarLoop]: Abstraction has 2403 states and 6041 transitions. [2022-01-18 09:27:55,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6041 transitions. [2022-01-18 09:27:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:55,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:55,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:55,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 09:27:55,754 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:55,754 INFO L85 PathProgramCache]: Analyzing trace with hash 314761491, now seen corresponding path program 108 times [2022-01-18 09:27:55,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:55,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594311401] [2022-01-18 09:27:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:55,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:27:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:27:56,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:27:56,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594311401] [2022-01-18 09:27:56,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594311401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:27:56,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:27:56,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:27:56,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364429326] [2022-01-18 09:27:56,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:27:56,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:27:56,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:27:56,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:27:56,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:27:56,664 INFO L87 Difference]: Start difference. First operand 2403 states and 6041 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:59,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:27:59,292 INFO L93 Difference]: Finished difference Result 2889 states and 7136 transitions. [2022-01-18 09:27:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:27:59,292 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:27:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:27:59,295 INFO L225 Difference]: With dead ends: 2889 [2022-01-18 09:27:59,295 INFO L226 Difference]: Without dead ends: 2755 [2022-01-18 09:27:59,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=673, Invalid=3359, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:27:59,296 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1467 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:27:59,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 3259 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:27:59,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-01-18 09:27:59,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2613. [2022-01-18 09:27:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2612 states have (on average 2.511102603369066) internal successors, (6559), 2612 states have internal predecessors, (6559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 6559 transitions. [2022-01-18 09:27:59,317 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 6559 transitions. Word has length 137 [2022-01-18 09:27:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:27:59,317 INFO L470 AbstractCegarLoop]: Abstraction has 2613 states and 6559 transitions. [2022-01-18 09:27:59,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:27:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 6559 transitions. [2022-01-18 09:27:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:27:59,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:27:59,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:27:59,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 09:27:59,319 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:27:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:27:59,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1706772407, now seen corresponding path program 109 times [2022-01-18 09:27:59,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:27:59,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062221937] [2022-01-18 09:27:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:27:59,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:27:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:00,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062221937] [2022-01-18 09:28:00,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062221937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:00,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:00,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:28:00,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105402389] [2022-01-18 09:28:00,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:00,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:28:00,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:00,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:28:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:28:00,163 INFO L87 Difference]: Start difference. First operand 2613 states and 6559 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:03,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:03,009 INFO L93 Difference]: Finished difference Result 3153 states and 7726 transitions. [2022-01-18 09:28:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:28:03,009 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:03,012 INFO L225 Difference]: With dead ends: 3153 [2022-01-18 09:28:03,012 INFO L226 Difference]: Without dead ends: 2570 [2022-01-18 09:28:03,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=772, Invalid=3784, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:28:03,013 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 1478 mSDsluCounter, 4030 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:03,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 4141 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 09:28:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-01-18 09:28:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2417. [2022-01-18 09:28:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2417 states, 2416 states have (on average 2.506208609271523) internal successors, (6055), 2416 states have internal predecessors, (6055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:03,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 6055 transitions. [2022-01-18 09:28:03,034 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 6055 transitions. Word has length 137 [2022-01-18 09:28:03,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:03,035 INFO L470 AbstractCegarLoop]: Abstraction has 2417 states and 6055 transitions. [2022-01-18 09:28:03,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 6055 transitions. [2022-01-18 09:28:03,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:03,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:03,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:03,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 09:28:03,037 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:03,038 INFO L85 PathProgramCache]: Analyzing trace with hash 552562293, now seen corresponding path program 110 times [2022-01-18 09:28:03,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:03,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251992170] [2022-01-18 09:28:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:03,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:03,897 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 09:28:03,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:03,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251992170] [2022-01-18 09:28:03,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251992170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:03,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:03,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:28:03,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692202131] [2022-01-18 09:28:03,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:03,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:28:03,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:03,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:28:03,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:28:03,898 INFO L87 Difference]: Start difference. First operand 2417 states and 6055 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:06,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:06,412 INFO L93 Difference]: Finished difference Result 2605 states and 6403 transitions. [2022-01-18 09:28:06,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:28:06,412 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:06,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:06,414 INFO L225 Difference]: With dead ends: 2605 [2022-01-18 09:28:06,415 INFO L226 Difference]: Without dead ends: 2323 [2022-01-18 09:28:06,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=679, Invalid=3353, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:28:06,415 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1212 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:06,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 3090 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:28:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-01-18 09:28:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2271. [2022-01-18 09:28:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 2270 states have (on average 2.530396475770925) internal successors, (5744), 2270 states have internal predecessors, (5744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:06,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 5744 transitions. [2022-01-18 09:28:06,435 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 5744 transitions. Word has length 137 [2022-01-18 09:28:06,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:06,435 INFO L470 AbstractCegarLoop]: Abstraction has 2271 states and 5744 transitions. [2022-01-18 09:28:06,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 5744 transitions. [2022-01-18 09:28:06,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:06,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:06,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:06,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 09:28:06,438 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:06,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:06,438 INFO L85 PathProgramCache]: Analyzing trace with hash 165087521, now seen corresponding path program 111 times [2022-01-18 09:28:06,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:06,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342183651] [2022-01-18 09:28:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:06,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:07,142 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 09:28:07,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:07,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342183651] [2022-01-18 09:28:07,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342183651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:07,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:07,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:28:07,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575197168] [2022-01-18 09:28:07,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:07,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:28:07,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:07,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:28:07,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:28:07,143 INFO L87 Difference]: Start difference. First operand 2271 states and 5744 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:09,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:09,168 INFO L93 Difference]: Finished difference Result 2539 states and 6267 transitions. [2022-01-18 09:28:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:09,168 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:09,171 INFO L225 Difference]: With dead ends: 2539 [2022-01-18 09:28:09,171 INFO L226 Difference]: Without dead ends: 2390 [2022-01-18 09:28:09,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:28:09,172 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1149 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:09,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 1982 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:09,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-01-18 09:28:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2281. [2022-01-18 09:28:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2280 states have (on average 2.5293859649122807) internal successors, (5767), 2280 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:09,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 5767 transitions. [2022-01-18 09:28:09,193 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 5767 transitions. Word has length 137 [2022-01-18 09:28:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:09,193 INFO L470 AbstractCegarLoop]: Abstraction has 2281 states and 5767 transitions. [2022-01-18 09:28:09,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:09,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 5767 transitions. [2022-01-18 09:28:09,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:09,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:09,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:09,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 09:28:09,195 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash -622559491, now seen corresponding path program 112 times [2022-01-18 09:28:09,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555868979] [2022-01-18 09:28:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:09,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:10,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:10,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555868979] [2022-01-18 09:28:10,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555868979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:10,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:10,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:28:10,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870636058] [2022-01-18 09:28:10,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:10,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:28:10,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:10,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:28:10,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=970, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:28:10,086 INFO L87 Difference]: Start difference. First operand 2281 states and 5767 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:12,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:12,910 INFO L93 Difference]: Finished difference Result 2469 states and 6117 transitions. [2022-01-18 09:28:12,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:28:12,911 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:12,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:12,913 INFO L225 Difference]: With dead ends: 2469 [2022-01-18 09:28:12,913 INFO L226 Difference]: Without dead ends: 2331 [2022-01-18 09:28:12,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=724, Invalid=3698, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:28:12,914 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 991 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:12,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 2328 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:28:12,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-01-18 09:28:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2279. [2022-01-18 09:28:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.5294117647058822) internal successors, (5762), 2278 states have internal predecessors, (5762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5762 transitions. [2022-01-18 09:28:12,933 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5762 transitions. Word has length 137 [2022-01-18 09:28:12,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:12,933 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5762 transitions. [2022-01-18 09:28:12,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5762 transitions. [2022-01-18 09:28:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:12,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:12,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:12,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 09:28:12,936 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:12,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 524593979, now seen corresponding path program 113 times [2022-01-18 09:28:12,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:12,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457208130] [2022-01-18 09:28:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:12,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:13,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:13,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457208130] [2022-01-18 09:28:13,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457208130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:13,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:13,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:28:13,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559146588] [2022-01-18 09:28:13,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:13,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:28:13,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:13,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:28:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:28:13,761 INFO L87 Difference]: Start difference. First operand 2279 states and 5762 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:15,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:15,892 INFO L93 Difference]: Finished difference Result 2467 states and 6112 transitions. [2022-01-18 09:28:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:28:15,893 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:15,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:15,895 INFO L225 Difference]: With dead ends: 2467 [2022-01-18 09:28:15,896 INFO L226 Difference]: Without dead ends: 2319 [2022-01-18 09:28:15,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:28:15,896 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 913 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:15,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 2355 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:28:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2022-01-18 09:28:15,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2275. [2022-01-18 09:28:15,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 2274 states have (on average 2.5259454705364996) internal successors, (5744), 2274 states have internal predecessors, (5744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 5744 transitions. [2022-01-18 09:28:15,915 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 5744 transitions. Word has length 137 [2022-01-18 09:28:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:15,915 INFO L470 AbstractCegarLoop]: Abstraction has 2275 states and 5744 transitions. [2022-01-18 09:28:15,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 5744 transitions. [2022-01-18 09:28:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:15,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:15,917 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:15,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 09:28:15,917 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1084184675, now seen corresponding path program 114 times [2022-01-18 09:28:15,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:15,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895891760] [2022-01-18 09:28:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:15,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:16,827 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 09:28:16,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:16,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895891760] [2022-01-18 09:28:16,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895891760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:16,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:16,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:28:16,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107423950] [2022-01-18 09:28:16,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:16,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:28:16,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:16,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:28:16,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:28:16,829 INFO L87 Difference]: Start difference. First operand 2275 states and 5744 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:19,303 INFO L93 Difference]: Finished difference Result 2530 states and 6244 transitions. [2022-01-18 09:28:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:28:19,303 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:19,306 INFO L225 Difference]: With dead ends: 2530 [2022-01-18 09:28:19,306 INFO L226 Difference]: Without dead ends: 2336 [2022-01-18 09:28:19,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:28:19,306 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 1003 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:19,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 2321 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:28:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2022-01-18 09:28:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2230. [2022-01-18 09:28:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2229 states have (on average 2.5298340062808435) internal successors, (5639), 2229 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 5639 transitions. [2022-01-18 09:28:19,347 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 5639 transitions. Word has length 137 [2022-01-18 09:28:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:19,348 INFO L470 AbstractCegarLoop]: Abstraction has 2230 states and 5639 transitions. [2022-01-18 09:28:19,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 5639 transitions. [2022-01-18 09:28:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:19,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:19,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:19,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 09:28:19,351 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:19,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:19,352 INFO L85 PathProgramCache]: Analyzing trace with hash -220818561, now seen corresponding path program 115 times [2022-01-18 09:28:19,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:19,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245815766] [2022-01-18 09:28:19,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:19,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:20,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:20,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245815766] [2022-01-18 09:28:20,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245815766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:20,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:20,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:28:20,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665548284] [2022-01-18 09:28:20,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:20,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:28:20,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:20,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:28:20,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:28:20,140 INFO L87 Difference]: Start difference. First operand 2230 states and 5639 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:22,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:22,252 INFO L93 Difference]: Finished difference Result 2478 states and 6122 transitions. [2022-01-18 09:28:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:28:22,252 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:22,255 INFO L225 Difference]: With dead ends: 2478 [2022-01-18 09:28:22,255 INFO L226 Difference]: Without dead ends: 2329 [2022-01-18 09:28:22,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=555, Invalid=2637, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:28:22,256 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 1143 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:22,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2064 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2022-01-18 09:28:22,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2232. [2022-01-18 09:28:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 2231 states have (on average 2.5289108023307936) internal successors, (5642), 2231 states have internal predecessors, (5642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 5642 transitions. [2022-01-18 09:28:22,275 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 5642 transitions. Word has length 137 [2022-01-18 09:28:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:22,275 INFO L470 AbstractCegarLoop]: Abstraction has 2232 states and 5642 transitions. [2022-01-18 09:28:22,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:22,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 5642 transitions. [2022-01-18 09:28:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:22,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:22,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:22,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 09:28:22,278 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1008465573, now seen corresponding path program 116 times [2022-01-18 09:28:22,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:22,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121605914] [2022-01-18 09:28:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:22,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:23,038 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 09:28:23,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:23,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121605914] [2022-01-18 09:28:23,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121605914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:23,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:23,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:28:23,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492791964] [2022-01-18 09:28:23,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:23,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:28:23,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:23,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:28:23,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:28:23,039 INFO L87 Difference]: Start difference. First operand 2232 states and 5642 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:25,126 INFO L93 Difference]: Finished difference Result 2404 states and 5966 transitions. [2022-01-18 09:28:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:25,129 INFO L225 Difference]: With dead ends: 2404 [2022-01-18 09:28:25,129 INFO L226 Difference]: Without dead ends: 2242 [2022-01-18 09:28:25,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=547, Invalid=2533, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:28:25,130 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 948 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:25,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 2226 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-01-18 09:28:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2206. [2022-01-18 09:28:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5328798185941044) internal successors, (5585), 2205 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:25,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5585 transitions. [2022-01-18 09:28:25,148 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5585 transitions. Word has length 137 [2022-01-18 09:28:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:25,149 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5585 transitions. [2022-01-18 09:28:25,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:25,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5585 transitions. [2022-01-18 09:28:25,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:25,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:25,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:25,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 09:28:25,151 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:25,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash 113023171, now seen corresponding path program 117 times [2022-01-18 09:28:25,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:25,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60031051] [2022-01-18 09:28:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:25,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:25,811 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 09:28:25,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:25,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60031051] [2022-01-18 09:28:25,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60031051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:25,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:25,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:28:25,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493433996] [2022-01-18 09:28:25,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:25,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:28:25,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:28:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:28:25,812 INFO L87 Difference]: Start difference. First operand 2206 states and 5585 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:27,709 INFO L93 Difference]: Finished difference Result 2345 states and 5840 transitions. [2022-01-18 09:28:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:28:27,709 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:27,712 INFO L225 Difference]: With dead ends: 2345 [2022-01-18 09:28:27,712 INFO L226 Difference]: Without dead ends: 2228 [2022-01-18 09:28:27,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=501, Invalid=2255, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:28:27,713 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 848 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:27,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [848 Valid, 1877 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2022-01-18 09:28:27,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2196. [2022-01-18 09:28:27,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2195 states have (on average 2.5348519362186788) internal successors, (5564), 2195 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 5564 transitions. [2022-01-18 09:28:27,731 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 5564 transitions. Word has length 137 [2022-01-18 09:28:27,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:27,731 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 5564 transitions. [2022-01-18 09:28:27,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 5564 transitions. [2022-01-18 09:28:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:27,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:27,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:27,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 09:28:27,733 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:27,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:27,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1541186335, now seen corresponding path program 118 times [2022-01-18 09:28:27,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:27,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189321326] [2022-01-18 09:28:27,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:27,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:28,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:28,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189321326] [2022-01-18 09:28:28,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189321326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:28,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:28,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:28:28,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533654957] [2022-01-18 09:28:28,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:28,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:28:28,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:28:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:28:28,456 INFO L87 Difference]: Start difference. First operand 2196 states and 5564 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:30,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:30,504 INFO L93 Difference]: Finished difference Result 2460 states and 6083 transitions. [2022-01-18 09:28:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:30,505 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:30,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:30,507 INFO L225 Difference]: With dead ends: 2460 [2022-01-18 09:28:30,508 INFO L226 Difference]: Without dead ends: 2311 [2022-01-18 09:28:30,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:28:30,508 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 994 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:30,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 2039 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:30,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-01-18 09:28:30,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2208. [2022-01-18 09:28:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.5337562301767105) internal successors, (5592), 2207 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5592 transitions. [2022-01-18 09:28:30,527 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5592 transitions. Word has length 137 [2022-01-18 09:28:30,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:30,527 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5592 transitions. [2022-01-18 09:28:30,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:30,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5592 transitions. [2022-01-18 09:28:30,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:30,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:30,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:30,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 09:28:30,530 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:30,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:30,530 INFO L85 PathProgramCache]: Analyzing trace with hash 753539323, now seen corresponding path program 119 times [2022-01-18 09:28:30,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:30,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124294347] [2022-01-18 09:28:30,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:30,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:31,475 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 09:28:31,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:31,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124294347] [2022-01-18 09:28:31,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124294347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:31,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:31,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:28:31,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688089266] [2022-01-18 09:28:31,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:31,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:28:31,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:31,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:28:31,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:28:31,476 INFO L87 Difference]: Start difference. First operand 2208 states and 5592 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:34,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:34,361 INFO L93 Difference]: Finished difference Result 2390 states and 5933 transitions. [2022-01-18 09:28:34,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:28:34,362 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:34,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:34,364 INFO L225 Difference]: With dead ends: 2390 [2022-01-18 09:28:34,364 INFO L226 Difference]: Without dead ends: 2252 [2022-01-18 09:28:34,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=717, Invalid=3705, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:28:34,365 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1178 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:34,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2413 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:28:34,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2022-01-18 09:28:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2206. [2022-01-18 09:28:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5337868480725625) internal successors, (5587), 2205 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:34,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5587 transitions. [2022-01-18 09:28:34,384 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5587 transitions. Word has length 137 [2022-01-18 09:28:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:34,384 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5587 transitions. [2022-01-18 09:28:34,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:34,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5587 transitions. [2022-01-18 09:28:34,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:34,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:34,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:34,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 09:28:34,386 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1900692793, now seen corresponding path program 120 times [2022-01-18 09:28:34,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:34,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569702287] [2022-01-18 09:28:34,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:34,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:35,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:35,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569702287] [2022-01-18 09:28:35,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569702287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:35,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:35,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:28:35,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226656598] [2022-01-18 09:28:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:35,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:28:35,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:35,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:28:35,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:28:35,197 INFO L87 Difference]: Start difference. First operand 2206 states and 5587 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:37,220 INFO L93 Difference]: Finished difference Result 2402 states and 5951 transitions. [2022-01-18 09:28:37,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:28:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:37,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:37,223 INFO L225 Difference]: With dead ends: 2402 [2022-01-18 09:28:37,223 INFO L226 Difference]: Without dead ends: 2254 [2022-01-18 09:28:37,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:28:37,224 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 1008 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:37,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 1977 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:37,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2022-01-18 09:28:37,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2202. [2022-01-18 09:28:37,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5329395729213995) internal successors, (5575), 2201 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5575 transitions. [2022-01-18 09:28:37,243 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5575 transitions. Word has length 137 [2022-01-18 09:28:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:37,243 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5575 transitions. [2022-01-18 09:28:37,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5575 transitions. [2022-01-18 09:28:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:37,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:37,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:37,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 09:28:37,245 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1247139359, now seen corresponding path program 121 times [2022-01-18 09:28:37,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:37,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789009082] [2022-01-18 09:28:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:37,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:38,128 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 09:28:38,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:38,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789009082] [2022-01-18 09:28:38,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789009082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:38,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:38,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:28:38,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135247225] [2022-01-18 09:28:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:38,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:28:38,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:38,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:28:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:28:38,129 INFO L87 Difference]: Start difference. First operand 2202 states and 5575 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:40,933 INFO L93 Difference]: Finished difference Result 2353 states and 5852 transitions. [2022-01-18 09:28:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:28:40,933 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:40,936 INFO L225 Difference]: With dead ends: 2353 [2022-01-18 09:28:40,936 INFO L226 Difference]: Without dead ends: 2242 [2022-01-18 09:28:40,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:28:40,936 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 917 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:40,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 2504 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:28:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-01-18 09:28:40,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2198. [2022-01-18 09:28:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2198 states, 2197 states have (on average 2.5339098771051436) internal successors, (5567), 2197 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:40,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 5567 transitions. [2022-01-18 09:28:40,955 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 5567 transitions. Word has length 137 [2022-01-18 09:28:40,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:40,955 INFO L470 AbstractCegarLoop]: Abstraction has 2198 states and 5567 transitions. [2022-01-18 09:28:40,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:40,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 5567 transitions. [2022-01-18 09:28:40,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:40,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:40,957 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:40,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 09:28:40,957 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1283571723, now seen corresponding path program 122 times [2022-01-18 09:28:40,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:40,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278028572] [2022-01-18 09:28:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:40,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:41,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:41,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278028572] [2022-01-18 09:28:41,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278028572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:41,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:41,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:28:41,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505097308] [2022-01-18 09:28:41,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:41,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:28:41,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:41,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:28:41,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:28:41,612 INFO L87 Difference]: Start difference. First operand 2198 states and 5567 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:43,571 INFO L93 Difference]: Finished difference Result 2389 states and 5936 transitions. [2022-01-18 09:28:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:43,572 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:43,575 INFO L225 Difference]: With dead ends: 2389 [2022-01-18 09:28:43,575 INFO L226 Difference]: Without dead ends: 2280 [2022-01-18 09:28:43,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:28:43,575 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 962 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:43,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 1903 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2022-01-18 09:28:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 2208. [2022-01-18 09:28:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.532850022655188) internal successors, (5590), 2207 states have internal predecessors, (5590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5590 transitions. [2022-01-18 09:28:43,595 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5590 transitions. Word has length 137 [2022-01-18 09:28:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:43,596 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5590 transitions. [2022-01-18 09:28:43,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5590 transitions. [2022-01-18 09:28:43,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:43,598 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:43,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:43,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 09:28:43,598 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:43,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1846088919, now seen corresponding path program 123 times [2022-01-18 09:28:43,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:43,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29943305] [2022-01-18 09:28:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:43,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:44,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:44,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29943305] [2022-01-18 09:28:44,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29943305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:44,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:44,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:28:44,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770607232] [2022-01-18 09:28:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:44,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:28:44,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:44,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:28:44,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:28:44,252 INFO L87 Difference]: Start difference. First operand 2208 states and 5590 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:46,214 INFO L93 Difference]: Finished difference Result 2349 states and 5846 transitions. [2022-01-18 09:28:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:46,215 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:46,218 INFO L225 Difference]: With dead ends: 2349 [2022-01-18 09:28:46,218 INFO L226 Difference]: Without dead ends: 2246 [2022-01-18 09:28:46,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:28:46,218 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 947 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:46,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1953 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:46,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2022-01-18 09:28:46,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2206. [2022-01-18 09:28:46,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5328798185941044) internal successors, (5585), 2205 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5585 transitions. [2022-01-18 09:28:46,238 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5585 transitions. Word has length 137 [2022-01-18 09:28:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:46,238 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5585 transitions. [2022-01-18 09:28:46,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:46,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5585 transitions. [2022-01-18 09:28:46,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:46,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:46,240 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:46,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 09:28:46,240 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:46,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:46,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1588916699, now seen corresponding path program 124 times [2022-01-18 09:28:46,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:46,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437592201] [2022-01-18 09:28:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:46,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:47,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:47,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437592201] [2022-01-18 09:28:47,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437592201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:47,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:47,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:28:47,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005263691] [2022-01-18 09:28:47,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:47,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:28:47,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:47,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:28:47,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:28:47,139 INFO L87 Difference]: Start difference. First operand 2206 states and 5585 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:49,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:49,850 INFO L93 Difference]: Finished difference Result 2347 states and 5841 transitions. [2022-01-18 09:28:49,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:28:49,850 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:49,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:49,853 INFO L225 Difference]: With dead ends: 2347 [2022-01-18 09:28:49,853 INFO L226 Difference]: Without dead ends: 2234 [2022-01-18 09:28:49,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:28:49,853 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 1124 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:49,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 2117 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-01-18 09:28:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2202. [2022-01-18 09:28:49,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5320308950477055) internal successors, (5573), 2201 states have internal predecessors, (5573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5573 transitions. [2022-01-18 09:28:49,872 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5573 transitions. Word has length 137 [2022-01-18 09:28:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:49,872 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5573 transitions. [2022-01-18 09:28:49,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5573 transitions. [2022-01-18 09:28:49,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:49,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:49,874 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:49,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 09:28:49,874 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:49,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1222080899, now seen corresponding path program 125 times [2022-01-18 09:28:49,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:49,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209528051] [2022-01-18 09:28:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:49,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:50,563 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 09:28:50,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:50,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209528051] [2022-01-18 09:28:50,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209528051] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:50,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:50,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:28:50,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810171237] [2022-01-18 09:28:50,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:50,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:28:50,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:50,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:28:50,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:28:50,565 INFO L87 Difference]: Start difference. First operand 2202 states and 5573 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:52,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:52,544 INFO L93 Difference]: Finished difference Result 2368 states and 5882 transitions. [2022-01-18 09:28:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:28:52,545 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:52,547 INFO L225 Difference]: With dead ends: 2368 [2022-01-18 09:28:52,547 INFO L226 Difference]: Without dead ends: 2214 [2022-01-18 09:28:52,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:28:52,548 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 946 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:52,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 1974 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-18 09:28:52,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2190. [2022-01-18 09:28:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 2189 states have (on average 2.5349474645957057) internal successors, (5549), 2189 states have internal predecessors, (5549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:52,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 5549 transitions. [2022-01-18 09:28:52,568 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 5549 transitions. Word has length 137 [2022-01-18 09:28:52,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:52,568 INFO L470 AbstractCegarLoop]: Abstraction has 2190 states and 5549 transitions. [2022-01-18 09:28:52,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:52,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 5549 transitions. [2022-01-18 09:28:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:52,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:52,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:52,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 09:28:52,570 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:52,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1361709413, now seen corresponding path program 126 times [2022-01-18 09:28:52,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:52,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613976628] [2022-01-18 09:28:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:52,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:53,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:53,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:53,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613976628] [2022-01-18 09:28:53,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613976628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:53,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:53,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:28:53,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142105164] [2022-01-18 09:28:53,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:53,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:28:53,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:53,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:28:53,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:28:53,359 INFO L87 Difference]: Start difference. First operand 2190 states and 5549 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:55,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:55,415 INFO L93 Difference]: Finished difference Result 2454 states and 6076 transitions. [2022-01-18 09:28:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:55,415 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:55,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:55,418 INFO L225 Difference]: With dead ends: 2454 [2022-01-18 09:28:55,418 INFO L226 Difference]: Without dead ends: 2305 [2022-01-18 09:28:55,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=548, Invalid=2644, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:28:55,419 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 1247 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:55,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 2110 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:28:55,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2022-01-18 09:28:55,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2208. [2022-01-18 09:28:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.5337562301767105) internal successors, (5592), 2207 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:55,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5592 transitions. [2022-01-18 09:28:55,438 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5592 transitions. Word has length 137 [2022-01-18 09:28:55,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:55,438 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5592 transitions. [2022-01-18 09:28:55,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:55,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5592 transitions. [2022-01-18 09:28:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:55,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:55,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:55,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 09:28:55,440 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:55,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash 574062401, now seen corresponding path program 127 times [2022-01-18 09:28:55,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:55,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033193970] [2022-01-18 09:28:55,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:55,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:56,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:56,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033193970] [2022-01-18 09:28:56,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033193970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:56,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:56,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:28:56,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579413936] [2022-01-18 09:28:56,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:56,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:28:56,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:28:56,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:28:56,114 INFO L87 Difference]: Start difference. First operand 2208 states and 5592 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:28:58,146 INFO L93 Difference]: Finished difference Result 2384 states and 5926 transitions. [2022-01-18 09:28:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:28:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:28:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:28:58,149 INFO L225 Difference]: With dead ends: 2384 [2022-01-18 09:28:58,149 INFO L226 Difference]: Without dead ends: 2246 [2022-01-18 09:28:58,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:28:58,149 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 930 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:28:58,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 2015 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:28:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2022-01-18 09:28:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2206. [2022-01-18 09:28:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5337868480725625) internal successors, (5587), 2205 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5587 transitions. [2022-01-18 09:28:58,167 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5587 transitions. Word has length 137 [2022-01-18 09:28:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:28:58,168 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5587 transitions. [2022-01-18 09:28:58,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:28:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5587 transitions. [2022-01-18 09:28:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:28:58,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:28:58,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:28:58,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 09:28:58,170 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:28:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:28:58,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1721215871, now seen corresponding path program 128 times [2022-01-18 09:28:58,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:28:58,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366438062] [2022-01-18 09:28:58,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:28:58,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:28:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:28:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:28:59,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:28:59,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366438062] [2022-01-18 09:28:59,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366438062] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:28:59,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:28:59,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-01-18 09:28:59,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729205477] [2022-01-18 09:28:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:28:59,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-18 09:28:59,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:28:59,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-18 09:28:59,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 09:28:59,301 INFO L87 Difference]: Start difference. First operand 2206 states and 5587 transitions. Second operand has 35 states, 35 states have (on average 3.914285714285714) internal successors, (137), 35 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:02,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:02,326 INFO L93 Difference]: Finished difference Result 2396 states and 5944 transitions. [2022-01-18 09:29:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 09:29:02,326 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.914285714285714) internal successors, (137), 35 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:02,329 INFO L225 Difference]: With dead ends: 2396 [2022-01-18 09:29:02,329 INFO L226 Difference]: Without dead ends: 2248 [2022-01-18 09:29:02,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=775, Invalid=3781, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:29:02,329 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 991 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:02,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 2275 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:29:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-01-18 09:29:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2202. [2022-01-18 09:29:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5329395729213995) internal successors, (5575), 2201 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:02,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5575 transitions. [2022-01-18 09:29:02,348 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5575 transitions. Word has length 137 [2022-01-18 09:29:02,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:02,348 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5575 transitions. [2022-01-18 09:29:02,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.914285714285714) internal successors, (137), 35 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:02,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5575 transitions. [2022-01-18 09:29:02,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:02,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:02,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:02,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 09:29:02,351 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:02,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1067662437, now seen corresponding path program 129 times [2022-01-18 09:29:02,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:02,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039162639] [2022-01-18 09:29:02,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:02,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:02,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:02,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039162639] [2022-01-18 09:29:02,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039162639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:02,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:02,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:02,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892238253] [2022-01-18 09:29:02,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:02,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:02,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:02,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:02,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:02,999 INFO L87 Difference]: Start difference. First operand 2202 states and 5575 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:04,886 INFO L93 Difference]: Finished difference Result 2347 states and 5845 transitions. [2022-01-18 09:29:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:29:04,886 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:04,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:04,889 INFO L225 Difference]: With dead ends: 2347 [2022-01-18 09:29:04,889 INFO L226 Difference]: Without dead ends: 2236 [2022-01-18 09:29:04,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:29:04,890 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 829 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:04,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 1966 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:04,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-01-18 09:29:04,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2198. [2022-01-18 09:29:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2198 states, 2197 states have (on average 2.5339098771051436) internal successors, (5567), 2197 states have internal predecessors, (5567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2198 states to 2198 states and 5567 transitions. [2022-01-18 09:29:04,907 INFO L78 Accepts]: Start accepts. Automaton has 2198 states and 5567 transitions. Word has length 137 [2022-01-18 09:29:04,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:04,907 INFO L470 AbstractCegarLoop]: Abstraction has 2198 states and 5567 transitions. [2022-01-18 09:29:04,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:04,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2198 states and 5567 transitions. [2022-01-18 09:29:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:04,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:04,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:04,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 09:29:04,910 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:04,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:04,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1463048645, now seen corresponding path program 130 times [2022-01-18 09:29:04,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:04,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377236179] [2022-01-18 09:29:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:04,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:05,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:05,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377236179] [2022-01-18 09:29:05,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377236179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:05,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:05,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:29:05,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837183961] [2022-01-18 09:29:05,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:05,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:29:05,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:29:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:29:05,707 INFO L87 Difference]: Start difference. First operand 2198 states and 5567 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:07,775 INFO L93 Difference]: Finished difference Result 2399 states and 5961 transitions. [2022-01-18 09:29:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:07,778 INFO L225 Difference]: With dead ends: 2399 [2022-01-18 09:29:07,778 INFO L226 Difference]: Without dead ends: 2290 [2022-01-18 09:29:07,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=548, Invalid=2644, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:29:07,778 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 1139 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:07,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 2178 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:07,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-01-18 09:29:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2208. [2022-01-18 09:29:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2207 states have (on average 2.532850022655188) internal successors, (5590), 2207 states have internal predecessors, (5590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:07,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 5590 transitions. [2022-01-18 09:29:07,798 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 5590 transitions. Word has length 137 [2022-01-18 09:29:07,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:07,798 INFO L470 AbstractCegarLoop]: Abstraction has 2208 states and 5590 transitions. [2022-01-18 09:29:07,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 5590 transitions. [2022-01-18 09:29:07,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:07,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:07,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:07,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 09:29:07,801 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:07,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:07,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2025565841, now seen corresponding path program 131 times [2022-01-18 09:29:07,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:07,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706762365] [2022-01-18 09:29:07,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:07,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:08,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:08,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706762365] [2022-01-18 09:29:08,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706762365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:08,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:08,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:29:08,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349377154] [2022-01-18 09:29:08,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:08,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:29:08,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:08,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:29:08,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:29:08,612 INFO L87 Difference]: Start difference. First operand 2208 states and 5590 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:10,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:10,634 INFO L93 Difference]: Finished difference Result 2359 states and 5871 transitions. [2022-01-18 09:29:10,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:10,634 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:10,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:10,636 INFO L225 Difference]: With dead ends: 2359 [2022-01-18 09:29:10,637 INFO L226 Difference]: Without dead ends: 2256 [2022-01-18 09:29:10,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=544, Invalid=2536, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:29:10,637 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 1239 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:10,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 1967 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2022-01-18 09:29:10,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2206. [2022-01-18 09:29:10,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.5328798185941044) internal successors, (5585), 2205 states have internal predecessors, (5585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:10,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5585 transitions. [2022-01-18 09:29:10,656 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5585 transitions. Word has length 137 [2022-01-18 09:29:10,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:10,656 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5585 transitions. [2022-01-18 09:29:10,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5585 transitions. [2022-01-18 09:29:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:10,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:10,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:10,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 09:29:10,658 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1409439777, now seen corresponding path program 132 times [2022-01-18 09:29:10,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:10,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452101402] [2022-01-18 09:29:10,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:10,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:11,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:11,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452101402] [2022-01-18 09:29:11,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452101402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:11,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:11,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:29:11,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647049323] [2022-01-18 09:29:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:11,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:29:11,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:11,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:29:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:29:11,450 INFO L87 Difference]: Start difference. First operand 2206 states and 5585 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:13,452 INFO L93 Difference]: Finished difference Result 2357 states and 5866 transitions. [2022-01-18 09:29:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:29:13,453 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:13,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:13,456 INFO L225 Difference]: With dead ends: 2357 [2022-01-18 09:29:13,456 INFO L226 Difference]: Without dead ends: 2244 [2022-01-18 09:29:13,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:29:13,456 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 1208 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:13,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1208 Valid, 2080 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:13,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-01-18 09:29:13,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2202. [2022-01-18 09:29:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.5320308950477055) internal successors, (5573), 2201 states have internal predecessors, (5573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5573 transitions. [2022-01-18 09:29:13,475 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5573 transitions. Word has length 137 [2022-01-18 09:29:13,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:13,476 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5573 transitions. [2022-01-18 09:29:13,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5573 transitions. [2022-01-18 09:29:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:13,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:13,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:13,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 09:29:13,478 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:13,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:13,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1401557821, now seen corresponding path program 133 times [2022-01-18 09:29:13,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:13,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733577564] [2022-01-18 09:29:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:13,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:14,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:14,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733577564] [2022-01-18 09:29:14,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733577564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:14,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:14,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:14,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950365305] [2022-01-18 09:29:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:14,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:14,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:14,184 INFO L87 Difference]: Start difference. First operand 2202 states and 5573 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:16,130 INFO L93 Difference]: Finished difference Result 2378 states and 5907 transitions. [2022-01-18 09:29:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:29:16,130 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:16,133 INFO L225 Difference]: With dead ends: 2378 [2022-01-18 09:29:16,133 INFO L226 Difference]: Without dead ends: 2230 [2022-01-18 09:29:16,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:29:16,134 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 984 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:16,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 1896 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2022-01-18 09:29:16,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2196. [2022-01-18 09:29:16,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2195 states have (on average 2.5339407744874713) internal successors, (5562), 2195 states have internal predecessors, (5562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 5562 transitions. [2022-01-18 09:29:16,152 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 5562 transitions. Word has length 137 [2022-01-18 09:29:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:16,152 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 5562 transitions. [2022-01-18 09:29:16,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 5562 transitions. [2022-01-18 09:29:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:16,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:16,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:16,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 09:29:16,154 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:16,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:16,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1026063461, now seen corresponding path program 134 times [2022-01-18 09:29:16,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:16,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132282366] [2022-01-18 09:29:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:16,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:16,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:16,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132282366] [2022-01-18 09:29:16,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132282366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:16,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:16,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:16,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216036612] [2022-01-18 09:29:16,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:16,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:16,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:16,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:16,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:16,890 INFO L87 Difference]: Start difference. First operand 2196 states and 5562 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:19,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:19,074 INFO L93 Difference]: Finished difference Result 2433 states and 6046 transitions. [2022-01-18 09:29:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:29:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:19,076 INFO L225 Difference]: With dead ends: 2433 [2022-01-18 09:29:19,076 INFO L226 Difference]: Without dead ends: 2294 [2022-01-18 09:29:19,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=528, Invalid=2442, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:29:19,077 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 977 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:19,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 1978 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:19,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-01-18 09:29:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2226. [2022-01-18 09:29:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2225 states have (on average 2.5307865168539325) internal successors, (5631), 2225 states have internal predecessors, (5631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:19,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 5631 transitions. [2022-01-18 09:29:19,095 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 5631 transitions. Word has length 137 [2022-01-18 09:29:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:19,095 INFO L470 AbstractCegarLoop]: Abstraction has 2226 states and 5631 transitions. [2022-01-18 09:29:19,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:19,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 5631 transitions. [2022-01-18 09:29:19,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:19,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:19,097 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:19,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 09:29:19,097 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:19,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:19,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1445567089, now seen corresponding path program 135 times [2022-01-18 09:29:19,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:19,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302497159] [2022-01-18 09:29:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:19,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:19,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:19,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302497159] [2022-01-18 09:29:19,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302497159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:19,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:19,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:19,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829707728] [2022-01-18 09:29:19,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:19,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:19,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:19,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:19,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:19,890 INFO L87 Difference]: Start difference. First operand 2226 states and 5631 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:21,970 INFO L93 Difference]: Finished difference Result 2401 states and 5964 transitions. [2022-01-18 09:29:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:29:21,970 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:21,973 INFO L225 Difference]: With dead ends: 2401 [2022-01-18 09:29:21,973 INFO L226 Difference]: Without dead ends: 2292 [2022-01-18 09:29:21,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=531, Invalid=2439, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:29:21,974 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 1068 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:21,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1068 Valid, 1928 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-01-18 09:29:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2228. [2022-01-18 09:29:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 2.5298607992815447) internal successors, (5634), 2227 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 5634 transitions. [2022-01-18 09:29:21,994 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 5634 transitions. Word has length 137 [2022-01-18 09:29:21,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:21,994 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 5634 transitions. [2022-01-18 09:29:21,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:21,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 5634 transitions. [2022-01-18 09:29:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:21,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:21,997 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:21,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 09:29:21,997 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2008084285, now seen corresponding path program 136 times [2022-01-18 09:29:21,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:21,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692240542] [2022-01-18 09:29:21,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:21,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:22,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:22,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692240542] [2022-01-18 09:29:22,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692240542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:22,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:22,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:22,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456630950] [2022-01-18 09:29:22,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:22,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:22,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:22,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:22,613 INFO L87 Difference]: Start difference. First operand 2228 states and 5634 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:24,481 INFO L93 Difference]: Finished difference Result 2357 states and 5868 transitions. [2022-01-18 09:29:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:24,481 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:24,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:24,484 INFO L225 Difference]: With dead ends: 2357 [2022-01-18 09:29:24,484 INFO L226 Difference]: Without dead ends: 2248 [2022-01-18 09:29:24,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=523, Invalid=2339, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:29:24,485 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 930 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:24,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 1861 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-01-18 09:29:24,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2220. [2022-01-18 09:29:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 2219 states have (on average 2.530869761153673) internal successors, (5616), 2219 states have internal predecessors, (5616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 5616 transitions. [2022-01-18 09:29:24,505 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 5616 transitions. Word has length 137 [2022-01-18 09:29:24,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:24,505 INFO L470 AbstractCegarLoop]: Abstraction has 2220 states and 5616 transitions. [2022-01-18 09:29:24,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 5616 transitions. [2022-01-18 09:29:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:24,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:24,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:24,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 09:29:24,507 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:24,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:24,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1758578049, now seen corresponding path program 137 times [2022-01-18 09:29:24,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:24,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308096226] [2022-01-18 09:29:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:24,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:25,163 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 09:29:25,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:25,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308096226] [2022-01-18 09:29:25,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308096226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:25,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:25,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:25,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623445623] [2022-01-18 09:29:25,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:25,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:25,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:25,164 INFO L87 Difference]: Start difference. First operand 2220 states and 5616 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:27,152 INFO L93 Difference]: Finished difference Result 2387 states and 5933 transitions. [2022-01-18 09:29:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:27,152 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:27,155 INFO L225 Difference]: With dead ends: 2387 [2022-01-18 09:29:27,155 INFO L226 Difference]: Without dead ends: 2278 [2022-01-18 09:29:27,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=511, Invalid=2351, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:29:27,156 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 1088 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:27,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 2081 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-01-18 09:29:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2230. [2022-01-18 09:29:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2229 states have (on average 2.5298340062808435) internal successors, (5639), 2229 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 5639 transitions. [2022-01-18 09:29:27,177 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 5639 transitions. Word has length 137 [2022-01-18 09:29:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:27,177 INFO L470 AbstractCegarLoop]: Abstraction has 2230 states and 5639 transitions. [2022-01-18 09:29:27,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 5639 transitions. [2022-01-18 09:29:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:27,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:27,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:27,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 09:29:27,179 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1973872051, now seen corresponding path program 138 times [2022-01-18 09:29:27,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:27,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873036497] [2022-01-18 09:29:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:27,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:27,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:27,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873036497] [2022-01-18 09:29:27,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873036497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:27,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:27,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:29:27,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276056468] [2022-01-18 09:29:27,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:27,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:29:27,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:29:27,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:29:27,959 INFO L87 Difference]: Start difference. First operand 2230 states and 5639 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:29,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:29,940 INFO L93 Difference]: Finished difference Result 2347 states and 5843 transitions. [2022-01-18 09:29:29,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:29,940 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:29,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:29,943 INFO L225 Difference]: With dead ends: 2347 [2022-01-18 09:29:29,943 INFO L226 Difference]: Without dead ends: 2244 [2022-01-18 09:29:29,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:29:29,943 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1050 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:29,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 1896 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:29,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-01-18 09:29:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2228. [2022-01-18 09:29:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 2.5298607992815447) internal successors, (5634), 2227 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:29,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 5634 transitions. [2022-01-18 09:29:29,962 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 5634 transitions. Word has length 137 [2022-01-18 09:29:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:29,962 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 5634 transitions. [2022-01-18 09:29:29,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 5634 transitions. [2022-01-18 09:29:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:29,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:29,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:29,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 09:29:29,965 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1113910373, now seen corresponding path program 139 times [2022-01-18 09:29:29,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:29,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132746527] [2022-01-18 09:29:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:29,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:30,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:30,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132746527] [2022-01-18 09:29:30,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132746527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:30,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:30,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:29:30,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118641115] [2022-01-18 09:29:30,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:30,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:29:30,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:30,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:29:30,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:29:30,743 INFO L87 Difference]: Start difference. First operand 2228 states and 5634 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:32,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:32,863 INFO L93 Difference]: Finished difference Result 2345 states and 5838 transitions. [2022-01-18 09:29:32,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:29:32,863 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:32,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:32,866 INFO L225 Difference]: With dead ends: 2345 [2022-01-18 09:29:32,866 INFO L226 Difference]: Without dead ends: 2214 [2022-01-18 09:29:32,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=525, Invalid=2445, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:29:32,866 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1133 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:32,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 2006 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-18 09:29:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2206. [2022-01-18 09:29:32,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.529251700680272) internal successors, (5577), 2205 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5577 transitions. [2022-01-18 09:29:32,902 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5577 transitions. Word has length 137 [2022-01-18 09:29:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:32,902 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5577 transitions. [2022-01-18 09:29:32,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5577 transitions. [2022-01-18 09:29:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:32,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:32,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:32,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 09:29:32,904 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:32,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:32,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2024808795, now seen corresponding path program 140 times [2022-01-18 09:29:32,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:32,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214293355] [2022-01-18 09:29:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:32,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:33,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:33,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214293355] [2022-01-18 09:29:33,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214293355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:33,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:33,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:33,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134151049] [2022-01-18 09:29:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:33,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:33,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:33,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:33,572 INFO L87 Difference]: Start difference. First operand 2206 states and 5577 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:35,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:35,498 INFO L93 Difference]: Finished difference Result 2348 states and 5834 transitions. [2022-01-18 09:29:35,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:29:35,499 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:35,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:35,501 INFO L225 Difference]: With dead ends: 2348 [2022-01-18 09:29:35,501 INFO L226 Difference]: Without dead ends: 2172 [2022-01-18 09:29:35,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=501, Invalid=2255, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:29:35,502 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 947 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:35,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 1975 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-01-18 09:29:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2172. [2022-01-18 09:29:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2171 states have (on average 2.5338553661906955) internal successors, (5501), 2171 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:35,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 5501 transitions. [2022-01-18 09:29:35,521 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 5501 transitions. Word has length 137 [2022-01-18 09:29:35,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:35,521 INFO L470 AbstractCegarLoop]: Abstraction has 2172 states and 5501 transitions. [2022-01-18 09:29:35,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:35,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 5501 transitions. [2022-01-18 09:29:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:35,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:35,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:35,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 09:29:35,523 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash 23899749, now seen corresponding path program 141 times [2022-01-18 09:29:35,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:35,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548998751] [2022-01-18 09:29:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:35,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:36,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:36,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548998751] [2022-01-18 09:29:36,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548998751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:36,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:36,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:29:36,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103207805] [2022-01-18 09:29:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:36,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:29:36,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:36,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:29:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:29:36,285 INFO L87 Difference]: Start difference. First operand 2172 states and 5501 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:38,469 INFO L93 Difference]: Finished difference Result 2412 states and 5968 transitions. [2022-01-18 09:29:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:38,471 INFO L225 Difference]: With dead ends: 2412 [2022-01-18 09:29:38,471 INFO L226 Difference]: Without dead ends: 2263 [2022-01-18 09:29:38,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:29:38,472 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 850 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:38,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 2501 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:38,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2022-01-18 09:29:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2184. [2022-01-18 09:29:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2183 states have (on average 2.532753092075126) internal successors, (5529), 2183 states have internal predecessors, (5529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 5529 transitions. [2022-01-18 09:29:38,489 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 5529 transitions. Word has length 137 [2022-01-18 09:29:38,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:38,489 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 5529 transitions. [2022-01-18 09:29:38,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 5529 transitions. [2022-01-18 09:29:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:38,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:38,491 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:38,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 09:29:38,492 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:38,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:38,492 INFO L85 PathProgramCache]: Analyzing trace with hash -763747263, now seen corresponding path program 142 times [2022-01-18 09:29:38,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:38,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995426021] [2022-01-18 09:29:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:38,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:39,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995426021] [2022-01-18 09:29:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995426021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:39,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:39,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:39,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042152545] [2022-01-18 09:29:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:39,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:39,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:39,130 INFO L87 Difference]: Start difference. First operand 2184 states and 5529 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:41,181 INFO L93 Difference]: Finished difference Result 2342 states and 5818 transitions. [2022-01-18 09:29:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:41,181 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:41,184 INFO L225 Difference]: With dead ends: 2342 [2022-01-18 09:29:41,184 INFO L226 Difference]: Without dead ends: 2204 [2022-01-18 09:29:41,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:29:41,184 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 944 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:41,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 2235 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:41,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2022-01-18 09:29:41,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2182. [2022-01-18 09:29:41,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 2.5327831270059606) internal successors, (5524), 2181 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 5524 transitions. [2022-01-18 09:29:41,202 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 5524 transitions. Word has length 137 [2022-01-18 09:29:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:41,203 INFO L470 AbstractCegarLoop]: Abstraction has 2182 states and 5524 transitions. [2022-01-18 09:29:41,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 5524 transitions. [2022-01-18 09:29:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:41,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:41,205 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:41,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 09:29:41,205 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:41,205 INFO L85 PathProgramCache]: Analyzing trace with hash 383406207, now seen corresponding path program 143 times [2022-01-18 09:29:41,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:41,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290000200] [2022-01-18 09:29:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:41,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:42,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:42,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290000200] [2022-01-18 09:29:42,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290000200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:42,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:42,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:29:42,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616864625] [2022-01-18 09:29:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:42,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:29:42,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:42,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:29:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:29:42,056 INFO L87 Difference]: Start difference. First operand 2182 states and 5524 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:44,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:44,865 INFO L93 Difference]: Finished difference Result 2354 states and 5836 transitions. [2022-01-18 09:29:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:29:44,865 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:44,868 INFO L225 Difference]: With dead ends: 2354 [2022-01-18 09:29:44,868 INFO L226 Difference]: Without dead ends: 2206 [2022-01-18 09:29:44,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:29:44,869 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 995 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:44,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 2399 Invalid, 1681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:29:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-18 09:29:44,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2178. [2022-01-18 09:29:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2177 states have (on average 2.5319246669728983) internal successors, (5512), 2177 states have internal predecessors, (5512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 5512 transitions. [2022-01-18 09:29:44,887 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 5512 transitions. Word has length 137 [2022-01-18 09:29:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:44,887 INFO L470 AbstractCegarLoop]: Abstraction has 2178 states and 5512 transitions. [2022-01-18 09:29:44,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 5512 transitions. [2022-01-18 09:29:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:44,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:44,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:44,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 09:29:44,889 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash -270147227, now seen corresponding path program 144 times [2022-01-18 09:29:44,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:44,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822234858] [2022-01-18 09:29:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:44,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:45,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:45,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822234858] [2022-01-18 09:29:45,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822234858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:45,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:45,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:29:45,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475823191] [2022-01-18 09:29:45,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:45,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:29:45,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:29:45,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:29:45,714 INFO L87 Difference]: Start difference. First operand 2178 states and 5512 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:47,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:47,838 INFO L93 Difference]: Finished difference Result 2305 states and 5737 transitions. [2022-01-18 09:29:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:29:47,838 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:47,841 INFO L225 Difference]: With dead ends: 2305 [2022-01-18 09:29:47,841 INFO L226 Difference]: Without dead ends: 2194 [2022-01-18 09:29:47,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=498, Invalid=2258, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:29:47,842 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 1063 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:47,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 1878 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:47,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-01-18 09:29:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2174. [2022-01-18 09:29:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.532903819604234) internal successors, (5504), 2173 states have internal predecessors, (5504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5504 transitions. [2022-01-18 09:29:47,860 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5504 transitions. Word has length 137 [2022-01-18 09:29:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:47,860 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5504 transitions. [2022-01-18 09:29:47,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:47,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5504 transitions. [2022-01-18 09:29:47,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:47,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:47,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:47,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 09:29:47,863 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1494108987, now seen corresponding path program 145 times [2022-01-18 09:29:47,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:47,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286381232] [2022-01-18 09:29:47,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:47,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:48,673 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 09:29:48,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:48,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286381232] [2022-01-18 09:29:48,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286381232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:48,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:48,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:29:48,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554908568] [2022-01-18 09:29:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:29:48,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:29:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:29:48,675 INFO L87 Difference]: Start difference. First operand 2174 states and 5504 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:50,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:50,725 INFO L93 Difference]: Finished difference Result 2357 states and 5853 transitions. [2022-01-18 09:29:50,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:29:50,725 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:50,728 INFO L225 Difference]: With dead ends: 2357 [2022-01-18 09:29:50,728 INFO L226 Difference]: Without dead ends: 2248 [2022-01-18 09:29:50,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=532, Invalid=2548, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:29:50,728 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 1030 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:50,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 2111 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:29:50,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2022-01-18 09:29:50,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2184. [2022-01-18 09:29:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2183 states have (on average 2.53183692166743) internal successors, (5527), 2183 states have internal predecessors, (5527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 5527 transitions. [2022-01-18 09:29:50,749 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 5527 transitions. Word has length 137 [2022-01-18 09:29:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:50,749 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 5527 transitions. [2022-01-18 09:29:50,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 5527 transitions. [2022-01-18 09:29:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:50,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:50,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:50,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 09:29:50,751 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash 931591791, now seen corresponding path program 146 times [2022-01-18 09:29:50,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:50,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287510564] [2022-01-18 09:29:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:50,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:51,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:51,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287510564] [2022-01-18 09:29:51,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287510564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:51,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:51,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:29:51,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093356680] [2022-01-18 09:29:51,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:51,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:29:51,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:51,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:29:51,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:29:51,654 INFO L87 Difference]: Start difference. First operand 2184 states and 5527 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:54,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:54,321 INFO L93 Difference]: Finished difference Result 2317 states and 5763 transitions. [2022-01-18 09:29:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:29:54,321 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:54,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:54,324 INFO L225 Difference]: With dead ends: 2317 [2022-01-18 09:29:54,324 INFO L226 Difference]: Without dead ends: 2214 [2022-01-18 09:29:54,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=696, Invalid=3594, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:29:54,324 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 1133 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:54,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 2423 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:54,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-18 09:29:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2182. [2022-01-18 09:29:54,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 2.531866116460339) internal successors, (5522), 2181 states have internal predecessors, (5522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 5522 transitions. [2022-01-18 09:29:54,346 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 5522 transitions. Word has length 137 [2022-01-18 09:29:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:54,347 INFO L470 AbstractCegarLoop]: Abstraction has 2182 states and 5522 transitions. [2022-01-18 09:29:54,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:54,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 5522 transitions. [2022-01-18 09:29:54,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:54,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:54,349 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:54,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 09:29:54,349 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:54,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 71630113, now seen corresponding path program 147 times [2022-01-18 09:29:54,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:54,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011271712] [2022-01-18 09:29:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:54,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:55,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:29:55,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:55,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011271712] [2022-01-18 09:29:55,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011271712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:55,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:55,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:29:55,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129325029] [2022-01-18 09:29:55,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:55,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:29:55,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:55,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:29:55,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:29:55,277 INFO L87 Difference]: Start difference. First operand 2182 states and 5522 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:58,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:29:58,047 INFO L93 Difference]: Finished difference Result 2315 states and 5758 transitions. [2022-01-18 09:29:58,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:29:58,048 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:29:58,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:29:58,050 INFO L225 Difference]: With dead ends: 2315 [2022-01-18 09:29:58,050 INFO L226 Difference]: Without dead ends: 2202 [2022-01-18 09:29:58,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=712, Invalid=3578, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:29:58,050 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 993 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:29:58,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 2159 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:29:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2022-01-18 09:29:58,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2178. [2022-01-18 09:29:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 2177 states have (on average 2.531005971520441) internal successors, (5510), 2177 states have internal predecessors, (5510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 5510 transitions. [2022-01-18 09:29:58,067 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 5510 transitions. Word has length 137 [2022-01-18 09:29:58,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:29:58,067 INFO L470 AbstractCegarLoop]: Abstraction has 2178 states and 5510 transitions. [2022-01-18 09:29:58,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:29:58,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 5510 transitions. [2022-01-18 09:29:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:29:58,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:29:58,069 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:29:58,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 09:29:58,070 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:29:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:29:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1555599811, now seen corresponding path program 148 times [2022-01-18 09:29:58,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:29:58,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323378622] [2022-01-18 09:29:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:29:58,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:29:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:29:58,869 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 09:29:58,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:29:58,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323378622] [2022-01-18 09:29:58,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323378622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:29:58,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:29:58,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:29:58,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125030387] [2022-01-18 09:29:58,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:29:58,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:29:58,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:29:58,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:29:58,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:29:58,874 INFO L87 Difference]: Start difference. First operand 2178 states and 5510 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:00,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:00,829 INFO L93 Difference]: Finished difference Result 2336 states and 5799 transitions. [2022-01-18 09:30:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:00,830 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:00,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:00,833 INFO L225 Difference]: With dead ends: 2336 [2022-01-18 09:30:00,833 INFO L226 Difference]: Without dead ends: 2188 [2022-01-18 09:30:00,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:30:00,833 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 878 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:00,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 2108 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-01-18 09:30:00,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2172. [2022-01-18 09:30:00,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2171 states have (on average 2.532934131736527) internal successors, (5499), 2171 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:00,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 5499 transitions. [2022-01-18 09:30:00,856 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 5499 transitions. Word has length 137 [2022-01-18 09:30:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:00,856 INFO L470 AbstractCegarLoop]: Abstraction has 2172 states and 5499 transitions. [2022-01-18 09:30:00,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 5499 transitions. [2022-01-18 09:30:00,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:00,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:00,858 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:00,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 09:30:00,858 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash -311746203, now seen corresponding path program 149 times [2022-01-18 09:30:00,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:00,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654010986] [2022-01-18 09:30:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:00,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:01,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:01,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654010986] [2022-01-18 09:30:01,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654010986] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:01,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:01,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:01,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385637916] [2022-01-18 09:30:01,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:01,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:01,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:01,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:01,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:01,522 INFO L87 Difference]: Start difference. First operand 2172 states and 5499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:03,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:03,615 INFO L93 Difference]: Finished difference Result 2409 states and 5983 transitions. [2022-01-18 09:30:03,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:30:03,616 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:03,618 INFO L225 Difference]: With dead ends: 2409 [2022-01-18 09:30:03,618 INFO L226 Difference]: Without dead ends: 2270 [2022-01-18 09:30:03,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:30:03,619 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1032 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:03,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 1967 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2022-01-18 09:30:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2202. [2022-01-18 09:30:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2201 states have (on average 2.529759200363471) internal successors, (5568), 2201 states have internal predecessors, (5568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 5568 transitions. [2022-01-18 09:30:03,638 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 5568 transitions. Word has length 137 [2022-01-18 09:30:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:03,638 INFO L470 AbstractCegarLoop]: Abstraction has 2202 states and 5568 transitions. [2022-01-18 09:30:03,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 5568 transitions. [2022-01-18 09:30:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:03,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:03,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:03,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 09:30:03,640 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:03,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:03,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1511590543, now seen corresponding path program 150 times [2022-01-18 09:30:03,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:03,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445144604] [2022-01-18 09:30:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:03,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:04,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:04,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445144604] [2022-01-18 09:30:04,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445144604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:04,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:04,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:04,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443491328] [2022-01-18 09:30:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:04,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:04,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:04,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:04,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:04,305 INFO L87 Difference]: Start difference. First operand 2202 states and 5568 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:06,370 INFO L93 Difference]: Finished difference Result 2377 states and 5901 transitions. [2022-01-18 09:30:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:30:06,370 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:06,373 INFO L225 Difference]: With dead ends: 2377 [2022-01-18 09:30:06,373 INFO L226 Difference]: Without dead ends: 2268 [2022-01-18 09:30:06,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=532, Invalid=2438, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:30:06,374 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 979 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:06,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 1933 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2022-01-18 09:30:06,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2204. [2022-01-18 09:30:06,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 2.5288243304584657) internal successors, (5571), 2203 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 5571 transitions. [2022-01-18 09:30:06,393 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 5571 transitions. Word has length 137 [2022-01-18 09:30:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:06,393 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 5571 transitions. [2022-01-18 09:30:06,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 5571 transitions. [2022-01-18 09:30:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:06,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:06,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:06,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 09:30:06,395 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash 949073347, now seen corresponding path program 151 times [2022-01-18 09:30:06,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276529339] [2022-01-18 09:30:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:06,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:07,222 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 09:30:07,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:07,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276529339] [2022-01-18 09:30:07,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276529339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:07,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:07,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:30:07,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945947548] [2022-01-18 09:30:07,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:07,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:30:07,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:07,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:30:07,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:30:07,224 INFO L87 Difference]: Start difference. First operand 2204 states and 5571 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:09,227 INFO L93 Difference]: Finished difference Result 2333 states and 5805 transitions. [2022-01-18 09:30:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:30:09,228 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:09,230 INFO L225 Difference]: With dead ends: 2333 [2022-01-18 09:30:09,230 INFO L226 Difference]: Without dead ends: 2224 [2022-01-18 09:30:09,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=563, Invalid=2629, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:30:09,231 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 1089 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:09,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1089 Valid, 1999 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-01-18 09:30:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2196. [2022-01-18 09:30:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 2195 states have (on average 2.529840546697039) internal successors, (5553), 2195 states have internal predecessors, (5553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 5553 transitions. [2022-01-18 09:30:09,251 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 5553 transitions. Word has length 137 [2022-01-18 09:30:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:09,251 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 5553 transitions. [2022-01-18 09:30:09,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 5553 transitions. [2022-01-18 09:30:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:09,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:09,253 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:09,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 09:30:09,253 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1198579583, now seen corresponding path program 152 times [2022-01-18 09:30:09,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:09,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242565101] [2022-01-18 09:30:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:09,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:09,947 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 09:30:09,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:09,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242565101] [2022-01-18 09:30:09,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242565101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:09,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:09,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:09,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851237925] [2022-01-18 09:30:09,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:09,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:09,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:09,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:09,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:09,948 INFO L87 Difference]: Start difference. First operand 2196 states and 5553 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:11,894 INFO L93 Difference]: Finished difference Result 2387 states and 5918 transitions. [2022-01-18 09:30:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:30:11,894 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:11,897 INFO L225 Difference]: With dead ends: 2387 [2022-01-18 09:30:11,897 INFO L226 Difference]: Without dead ends: 2278 [2022-01-18 09:30:11,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:30:11,897 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 883 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:11,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 1815 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:30:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-01-18 09:30:11,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2206. [2022-01-18 09:30:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.528798185941043) internal successors, (5576), 2205 states have internal predecessors, (5576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5576 transitions. [2022-01-18 09:30:11,916 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5576 transitions. Word has length 137 [2022-01-18 09:30:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:11,916 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5576 transitions. [2022-01-18 09:30:11,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5576 transitions. [2022-01-18 09:30:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:11,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:11,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:11,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 09:30:11,919 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash 636062387, now seen corresponding path program 153 times [2022-01-18 09:30:11,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:11,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889030567] [2022-01-18 09:30:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:11,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:12,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889030567] [2022-01-18 09:30:12,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889030567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:12,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:12,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:30:12,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116068953] [2022-01-18 09:30:12,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:12,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:30:12,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:12,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:30:12,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=897, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:12,809 INFO L87 Difference]: Start difference. First operand 2206 states and 5576 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:15,232 INFO L93 Difference]: Finished difference Result 2347 states and 5828 transitions. [2022-01-18 09:30:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:30:15,233 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:15,235 INFO L225 Difference]: With dead ends: 2347 [2022-01-18 09:30:15,236 INFO L226 Difference]: Without dead ends: 2244 [2022-01-18 09:30:15,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=714, Invalid=3318, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:30:15,236 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 1180 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:15,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1180 Valid, 2149 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2022-01-18 09:30:15,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2204. [2022-01-18 09:30:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 2.5288243304584657) internal successors, (5571), 2203 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 5571 transitions. [2022-01-18 09:30:15,255 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 5571 transitions. Word has length 137 [2022-01-18 09:30:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:15,255 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 5571 transitions. [2022-01-18 09:30:15,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 5571 transitions. [2022-01-18 09:30:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:15,257 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:15,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:15,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 09:30:15,257 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:15,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash -223899291, now seen corresponding path program 154 times [2022-01-18 09:30:15,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:15,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841212955] [2022-01-18 09:30:15,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:15,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:16,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:16,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841212955] [2022-01-18 09:30:16,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841212955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:16,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:16,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:30:16,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209530666] [2022-01-18 09:30:16,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:16,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:30:16,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:30:16,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:30:16,185 INFO L87 Difference]: Start difference. First operand 2204 states and 5571 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:19,154 INFO L93 Difference]: Finished difference Result 2345 states and 5823 transitions. [2022-01-18 09:30:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:30:19,154 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:19,157 INFO L225 Difference]: With dead ends: 2345 [2022-01-18 09:30:19,157 INFO L226 Difference]: Without dead ends: 2214 [2022-01-18 09:30:19,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=740, Invalid=3682, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:30:19,157 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 1090 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:19,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1090 Valid, 2119 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:30:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2022-01-18 09:30:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2182. [2022-01-18 09:30:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2181 states have (on average 2.5281980742778543) internal successors, (5514), 2181 states have internal predecessors, (5514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 5514 transitions. [2022-01-18 09:30:19,179 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 5514 transitions. Word has length 137 [2022-01-18 09:30:19,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:19,179 INFO L470 AbstractCegarLoop]: Abstraction has 2182 states and 5514 transitions. [2022-01-18 09:30:19,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 5514 transitions. [2022-01-18 09:30:19,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:19,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:19,181 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:19,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 09:30:19,181 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:19,181 INFO L85 PathProgramCache]: Analyzing trace with hash 686999131, now seen corresponding path program 155 times [2022-01-18 09:30:19,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:19,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269732989] [2022-01-18 09:30:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:19,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:20,017 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 09:30:20,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:20,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269732989] [2022-01-18 09:30:20,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269732989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:20,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:20,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 09:30:20,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974395816] [2022-01-18 09:30:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:20,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 09:30:20,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 09:30:20,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=794, Unknown=0, NotChecked=0, Total=870 [2022-01-18 09:30:20,018 INFO L87 Difference]: Start difference. First operand 2182 states and 5514 transitions. Second operand has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:22,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:22,125 INFO L93 Difference]: Finished difference Result 2348 states and 5819 transitions. [2022-01-18 09:30:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:22,125 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:22,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:22,128 INFO L225 Difference]: With dead ends: 2348 [2022-01-18 09:30:22,128 INFO L226 Difference]: Without dead ends: 2190 [2022-01-18 09:30:22,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:30:22,128 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 983 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:22,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [983 Valid, 2310 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:22,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2022-01-18 09:30:22,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2166. [2022-01-18 09:30:22,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 2.5325635103926096) internal successors, (5483), 2165 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:22,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5483 transitions. [2022-01-18 09:30:22,147 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5483 transitions. Word has length 137 [2022-01-18 09:30:22,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:22,147 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 5483 transitions. [2022-01-18 09:30:22,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.566666666666666) internal successors, (137), 30 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5483 transitions. [2022-01-18 09:30:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:22,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:22,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:22,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 09:30:22,149 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:22,149 INFO L85 PathProgramCache]: Analyzing trace with hash -233529179, now seen corresponding path program 156 times [2022-01-18 09:30:22,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:22,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666235588] [2022-01-18 09:30:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:22,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:22,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:22,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666235588] [2022-01-18 09:30:22,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666235588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:22,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:22,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:30:22,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915075768] [2022-01-18 09:30:22,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:22,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:30:22,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:30:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=896, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:30:22,996 INFO L87 Difference]: Start difference. First operand 2166 states and 5483 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:25,403 INFO L93 Difference]: Finished difference Result 2414 states and 5962 transitions. [2022-01-18 09:30:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:30:25,404 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:25,406 INFO L225 Difference]: With dead ends: 2414 [2022-01-18 09:30:25,406 INFO L226 Difference]: Without dead ends: 2265 [2022-01-18 09:30:25,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=700, Invalid=3332, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:30:25,407 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 1240 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:25,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 2244 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-01-18 09:30:25,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2176. [2022-01-18 09:30:25,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 2.5314942528735633) internal successors, (5506), 2175 states have internal predecessors, (5506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 5506 transitions. [2022-01-18 09:30:25,426 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 5506 transitions. Word has length 137 [2022-01-18 09:30:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:25,426 INFO L470 AbstractCegarLoop]: Abstraction has 2176 states and 5506 transitions. [2022-01-18 09:30:25,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 5506 transitions. [2022-01-18 09:30:25,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:25,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:25,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:25,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 09:30:25,428 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:25,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1021176191, now seen corresponding path program 157 times [2022-01-18 09:30:25,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:25,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508048808] [2022-01-18 09:30:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:25,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:26,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508048808] [2022-01-18 09:30:26,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508048808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:26,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:26,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:26,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982373961] [2022-01-18 09:30:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:26,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:26,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:26,096 INFO L87 Difference]: Start difference. First operand 2176 states and 5506 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:28,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:28,115 INFO L93 Difference]: Finished difference Result 2344 states and 5812 transitions. [2022-01-18 09:30:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:30:28,116 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:28,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:28,118 INFO L225 Difference]: With dead ends: 2344 [2022-01-18 09:30:28,118 INFO L226 Difference]: Without dead ends: 2206 [2022-01-18 09:30:28,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=520, Invalid=2342, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:30:28,119 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 974 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:28,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 2249 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:28,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-18 09:30:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2174. [2022-01-18 09:30:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.5315232397606997) internal successors, (5501), 2173 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5501 transitions. [2022-01-18 09:30:28,136 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5501 transitions. Word has length 137 [2022-01-18 09:30:28,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:28,136 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5501 transitions. [2022-01-18 09:30:28,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5501 transitions. [2022-01-18 09:30:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:28,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:28,138 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:28,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 09:30:28,139 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:28,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:28,139 INFO L85 PathProgramCache]: Analyzing trace with hash 125977279, now seen corresponding path program 158 times [2022-01-18 09:30:28,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:28,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181500429] [2022-01-18 09:30:28,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:28,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:28,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:28,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181500429] [2022-01-18 09:30:28,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181500429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:28,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:28,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:28,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141916484] [2022-01-18 09:30:28,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:28,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:28,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:28,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:28,824 INFO L87 Difference]: Start difference. First operand 2174 states and 5501 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:30,858 INFO L93 Difference]: Finished difference Result 2356 states and 5830 transitions. [2022-01-18 09:30:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:30,861 INFO L225 Difference]: With dead ends: 2356 [2022-01-18 09:30:30,862 INFO L226 Difference]: Without dead ends: 2208 [2022-01-18 09:30:30,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:30:30,862 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 966 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:30,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 2362 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-01-18 09:30:30,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2170. [2022-01-18 09:30:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 2.5306592899953895) internal successors, (5489), 2169 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 5489 transitions. [2022-01-18 09:30:30,881 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 5489 transitions. Word has length 137 [2022-01-18 09:30:30,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:30,881 INFO L470 AbstractCegarLoop]: Abstraction has 2170 states and 5489 transitions. [2022-01-18 09:30:30,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 5489 transitions. [2022-01-18 09:30:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:30,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:30,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:30,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 09:30:30,884 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:30,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash -527576155, now seen corresponding path program 159 times [2022-01-18 09:30:30,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:30,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986000806] [2022-01-18 09:30:30,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:30,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:31,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:31,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986000806] [2022-01-18 09:30:31,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986000806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:31,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:31,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:31,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716460844] [2022-01-18 09:30:31,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:31,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:31,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:31,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:31,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:31,593 INFO L87 Difference]: Start difference. First operand 2170 states and 5489 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:33,578 INFO L93 Difference]: Finished difference Result 2307 states and 5731 transitions. [2022-01-18 09:30:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:33,596 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:33,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:33,599 INFO L225 Difference]: With dead ends: 2307 [2022-01-18 09:30:33,599 INFO L226 Difference]: Without dead ends: 2196 [2022-01-18 09:30:33,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:30:33,599 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 922 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:33,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 2109 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-01-18 09:30:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2166. [2022-01-18 09:30:33,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 2.5316397228637415) internal successors, (5481), 2165 states have internal predecessors, (5481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:33,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5481 transitions. [2022-01-18 09:30:33,620 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5481 transitions. Word has length 137 [2022-01-18 09:30:33,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:33,620 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 5481 transitions. [2022-01-18 09:30:33,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:33,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5481 transitions. [2022-01-18 09:30:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:33,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:33,622 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:33,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 09:30:33,622 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1236680059, now seen corresponding path program 160 times [2022-01-18 09:30:33,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:33,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570299007] [2022-01-18 09:30:33,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:33,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:34,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:34,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570299007] [2022-01-18 09:30:34,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570299007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:34,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:34,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:34,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768256736] [2022-01-18 09:30:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:34,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:34,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:34,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:34,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:34,304 INFO L87 Difference]: Start difference. First operand 2166 states and 5481 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:36,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:36,419 INFO L93 Difference]: Finished difference Result 2349 states and 5830 transitions. [2022-01-18 09:30:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:30:36,419 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:36,422 INFO L225 Difference]: With dead ends: 2349 [2022-01-18 09:30:36,422 INFO L226 Difference]: Without dead ends: 2240 [2022-01-18 09:30:36,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:30:36,422 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 830 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:36,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 2434 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2022-01-18 09:30:36,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2176. [2022-01-18 09:30:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 2.530574712643678) internal successors, (5504), 2175 states have internal predecessors, (5504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 5504 transitions. [2022-01-18 09:30:36,441 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 5504 transitions. Word has length 137 [2022-01-18 09:30:36,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:36,441 INFO L470 AbstractCegarLoop]: Abstraction has 2176 states and 5504 transitions. [2022-01-18 09:30:36,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 5504 transitions. [2022-01-18 09:30:36,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:36,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:36,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:36,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 09:30:36,444 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:36,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash 674162863, now seen corresponding path program 161 times [2022-01-18 09:30:36,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:36,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410831139] [2022-01-18 09:30:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:36,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:37,404 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 09:30:37,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:37,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410831139] [2022-01-18 09:30:37,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410831139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:37,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:37,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:30:37,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424611067] [2022-01-18 09:30:37,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:37,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:30:37,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:30:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:30:37,405 INFO L87 Difference]: Start difference. First operand 2176 states and 5504 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:39,947 INFO L93 Difference]: Finished difference Result 2309 states and 5740 transitions. [2022-01-18 09:30:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:30:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:39,950 INFO L225 Difference]: With dead ends: 2309 [2022-01-18 09:30:39,950 INFO L226 Difference]: Without dead ends: 2206 [2022-01-18 09:30:39,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=696, Invalid=3594, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:30:39,950 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 1268 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:39,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1268 Valid, 2295 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-01-18 09:30:39,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2174. [2022-01-18 09:30:39,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.530602853198343) internal successors, (5499), 2173 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:39,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5499 transitions. [2022-01-18 09:30:39,969 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5499 transitions. Word has length 137 [2022-01-18 09:30:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:39,969 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5499 transitions. [2022-01-18 09:30:39,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5499 transitions. [2022-01-18 09:30:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:39,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:39,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:39,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 09:30:39,971 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:39,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:39,971 INFO L85 PathProgramCache]: Analyzing trace with hash -185798815, now seen corresponding path program 162 times [2022-01-18 09:30:39,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:39,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077720352] [2022-01-18 09:30:39,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:39,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:40,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:40,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077720352] [2022-01-18 09:30:40,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077720352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:40,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:40,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:40,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113155177] [2022-01-18 09:30:40,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:40,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:40,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:40,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:40,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:40,641 INFO L87 Difference]: Start difference. First operand 2174 states and 5499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:42,562 INFO L93 Difference]: Finished difference Result 2321 states and 5758 transitions. [2022-01-18 09:30:42,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:42,563 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:42,565 INFO L225 Difference]: With dead ends: 2321 [2022-01-18 09:30:42,566 INFO L226 Difference]: Without dead ends: 2208 [2022-01-18 09:30:42,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:30:42,566 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 851 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:42,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 2260 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-01-18 09:30:42,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2170. [2022-01-18 09:30:42,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 2.5297372060857537) internal successors, (5487), 2169 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 5487 transitions. [2022-01-18 09:30:42,584 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 5487 transitions. Word has length 137 [2022-01-18 09:30:42,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:42,584 INFO L470 AbstractCegarLoop]: Abstraction has 2170 states and 5487 transitions. [2022-01-18 09:30:42,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:42,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 5487 transitions. [2022-01-18 09:30:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:42,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:42,586 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:42,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 09:30:42,587 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1298170883, now seen corresponding path program 163 times [2022-01-18 09:30:42,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:42,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250185189] [2022-01-18 09:30:42,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:42,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:43,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:43,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250185189] [2022-01-18 09:30:43,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250185189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:43,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:43,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:30:43,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005747319] [2022-01-18 09:30:43,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:43,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:30:43,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:43,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:30:43,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=841, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:30:43,377 INFO L87 Difference]: Start difference. First operand 2170 states and 5487 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:45,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:45,458 INFO L93 Difference]: Finished difference Result 2342 states and 5799 transitions. [2022-01-18 09:30:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:45,458 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:45,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:45,461 INFO L225 Difference]: With dead ends: 2342 [2022-01-18 09:30:45,461 INFO L226 Difference]: Without dead ends: 2194 [2022-01-18 09:30:45,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:30:45,462 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 992 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:45,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 2518 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:45,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-01-18 09:30:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2164. [2022-01-18 09:30:45,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 2.5321312991215903) internal successors, (5477), 2163 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 5477 transitions. [2022-01-18 09:30:45,480 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 5477 transitions. Word has length 137 [2022-01-18 09:30:45,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:45,480 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 5477 transitions. [2022-01-18 09:30:45,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 5477 transitions. [2022-01-18 09:30:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:45,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:45,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:45,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 09:30:45,482 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash 966056485, now seen corresponding path program 164 times [2022-01-18 09:30:45,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:45,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628475308] [2022-01-18 09:30:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:45,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:46,227 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 09:30:46,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:46,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628475308] [2022-01-18 09:30:46,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628475308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:46,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:46,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:30:46,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213274117] [2022-01-18 09:30:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:46,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:30:46,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:30:46,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:30:46,228 INFO L87 Difference]: Start difference. First operand 2164 states and 5477 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:48,350 INFO L93 Difference]: Finished difference Result 2390 states and 5907 transitions. [2022-01-18 09:30:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:30:48,350 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:48,353 INFO L225 Difference]: With dead ends: 2390 [2022-01-18 09:30:48,353 INFO L226 Difference]: Without dead ends: 2241 [2022-01-18 09:30:48,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=524, Invalid=2446, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:30:48,354 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 963 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:48,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 2416 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:30:48,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-01-18 09:30:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2166. [2022-01-18 09:30:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 2165 states have (on average 2.531177829099307) internal successors, (5480), 2165 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 5480 transitions. [2022-01-18 09:30:48,373 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5480 transitions. Word has length 137 [2022-01-18 09:30:48,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:48,373 INFO L470 AbstractCegarLoop]: Abstraction has 2166 states and 5480 transitions. [2022-01-18 09:30:48,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5480 transitions. [2022-01-18 09:30:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:48,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:48,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:48,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 09:30:48,375 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:48,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash 178409473, now seen corresponding path program 165 times [2022-01-18 09:30:48,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:48,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979680724] [2022-01-18 09:30:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:48,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:49,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:49,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979680724] [2022-01-18 09:30:49,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979680724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:49,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:49,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:30:49,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449080372] [2022-01-18 09:30:49,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:49,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:30:49,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:49,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:30:49,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1020, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:30:49,304 INFO L87 Difference]: Start difference. First operand 2166 states and 5480 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:52,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:52,328 INFO L93 Difference]: Finished difference Result 2320 states and 5757 transitions. [2022-01-18 09:30:52,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:30:52,329 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:52,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:52,331 INFO L225 Difference]: With dead ends: 2320 [2022-01-18 09:30:52,331 INFO L226 Difference]: Without dead ends: 2182 [2022-01-18 09:30:52,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=744, Invalid=3812, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:30:52,332 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 1303 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:52,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 2868 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:30:52,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2022-01-18 09:30:52,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2164. [2022-01-18 09:30:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 2.53120665742025) internal successors, (5475), 2163 states have internal predecessors, (5475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 5475 transitions. [2022-01-18 09:30:52,350 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 5475 transitions. Word has length 137 [2022-01-18 09:30:52,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:52,350 INFO L470 AbstractCegarLoop]: Abstraction has 2164 states and 5475 transitions. [2022-01-18 09:30:52,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 5475 transitions. [2022-01-18 09:30:52,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:52,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:52,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:52,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 09:30:52,353 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:52,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:52,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1325562943, now seen corresponding path program 166 times [2022-01-18 09:30:52,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:52,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495269019] [2022-01-18 09:30:52,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:52,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:53,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:53,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495269019] [2022-01-18 09:30:53,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495269019] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:53,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:53,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:53,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239824150] [2022-01-18 09:30:53,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:53,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:53,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:53,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:53,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:53,041 INFO L87 Difference]: Start difference. First operand 2164 states and 5475 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:55,022 INFO L93 Difference]: Finished difference Result 2332 states and 5775 transitions. [2022-01-18 09:30:55,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:55,022 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:55,025 INFO L225 Difference]: With dead ends: 2332 [2022-01-18 09:30:55,025 INFO L226 Difference]: Without dead ends: 2184 [2022-01-18 09:30:55,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:30:55,025 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 1128 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:55,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 2066 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2022-01-18 09:30:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2160. [2022-01-18 09:30:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2160 states, 2159 states have (on average 2.5289485873089395) internal successors, (5460), 2159 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2160 states to 2160 states and 5460 transitions. [2022-01-18 09:30:55,044 INFO L78 Accepts]: Start accepts. Automaton has 2160 states and 5460 transitions. Word has length 137 [2022-01-18 09:30:55,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:55,044 INFO L470 AbstractCegarLoop]: Abstraction has 2160 states and 5460 transitions. [2022-01-18 09:30:55,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:55,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2160 states and 5460 transitions. [2022-01-18 09:30:55,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:55,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:55,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:55,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 09:30:55,046 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:55,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:55,046 INFO L85 PathProgramCache]: Analyzing trace with hash 672009509, now seen corresponding path program 167 times [2022-01-18 09:30:55,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:55,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803361793] [2022-01-18 09:30:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:55,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:55,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:55,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803361793] [2022-01-18 09:30:55,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803361793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:55,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:55,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:30:55,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292681034] [2022-01-18 09:30:55,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:55,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:30:55,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:55,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:30:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:30:55,747 INFO L87 Difference]: Start difference. First operand 2160 states and 5460 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:30:57,718 INFO L93 Difference]: Finished difference Result 2283 states and 5673 transitions. [2022-01-18 09:30:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:30:57,719 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:30:57,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:30:57,721 INFO L225 Difference]: With dead ends: 2283 [2022-01-18 09:30:57,721 INFO L226 Difference]: Without dead ends: 2172 [2022-01-18 09:30:57,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:30:57,721 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 1015 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:30:57,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 2168 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:30:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-01-18 09:30:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2156. [2022-01-18 09:30:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2155 states have (on average 2.5303944315545244) internal successors, (5453), 2155 states have internal predecessors, (5453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 5453 transitions. [2022-01-18 09:30:57,738 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 5453 transitions. Word has length 137 [2022-01-18 09:30:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:30:57,738 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 5453 transitions. [2022-01-18 09:30:57,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:30:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 5453 transitions. [2022-01-18 09:30:57,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:30:57,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:30:57,740 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:30:57,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 09:30:57,740 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:30:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:30:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash 592996901, now seen corresponding path program 168 times [2022-01-18 09:30:57,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:30:57,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149106886] [2022-01-18 09:30:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:30:57,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:30:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:30:58,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:30:58,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:30:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149106886] [2022-01-18 09:30:58,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149106886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:30:58,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:30:58,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:30:58,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989166004] [2022-01-18 09:30:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:30:58,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:30:58,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:30:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:30:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:30:58,563 INFO L87 Difference]: Start difference. First operand 2156 states and 5453 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:00,742 INFO L93 Difference]: Finished difference Result 2364 states and 5852 transitions. [2022-01-18 09:31:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:31:00,743 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:00,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:00,745 INFO L225 Difference]: With dead ends: 2364 [2022-01-18 09:31:00,745 INFO L226 Difference]: Without dead ends: 2215 [2022-01-18 09:31:00,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=568, Invalid=2738, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:31:00,746 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1267 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:00,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1267 Valid, 2662 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:00,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2022-01-18 09:31:00,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2156. [2022-01-18 09:31:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2155 states have (on average 2.528074245939675) internal successors, (5448), 2155 states have internal predecessors, (5448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 5448 transitions. [2022-01-18 09:31:00,763 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 5448 transitions. Word has length 137 [2022-01-18 09:31:00,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:00,764 INFO L470 AbstractCegarLoop]: Abstraction has 2156 states and 5448 transitions. [2022-01-18 09:31:00,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 5448 transitions. [2022-01-18 09:31:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:00,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:00,766 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:00,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 09:31:00,766 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:00,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:00,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1650021179, now seen corresponding path program 169 times [2022-01-18 09:31:00,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:00,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838405603] [2022-01-18 09:31:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:00,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:01,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:01,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838405603] [2022-01-18 09:31:01,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838405603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:01,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:01,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:31:01,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947437424] [2022-01-18 09:31:01,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:01,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:31:01,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:01,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:31:01,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1009, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:31:01,640 INFO L87 Difference]: Start difference. First operand 2156 states and 5448 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:04,184 INFO L93 Difference]: Finished difference Result 2578 states and 6418 transitions. [2022-01-18 09:31:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:31:04,185 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:04,187 INFO L225 Difference]: With dead ends: 2578 [2022-01-18 09:31:04,188 INFO L226 Difference]: Without dead ends: 2444 [2022-01-18 09:31:04,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=665, Invalid=3367, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 09:31:04,188 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1422 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:04,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1422 Valid, 3280 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 09:31:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2022-01-18 09:31:04,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2352. [2022-01-18 09:31:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2351 states have (on average 2.52573373032752) internal successors, (5938), 2351 states have internal predecessors, (5938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 5938 transitions. [2022-01-18 09:31:04,208 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 5938 transitions. Word has length 137 [2022-01-18 09:31:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:04,208 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 5938 transitions. [2022-01-18 09:31:04,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 5938 transitions. [2022-01-18 09:31:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:04,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:04,210 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:04,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 09:31:04,210 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:04,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:04,211 INFO L85 PathProgramCache]: Analyzing trace with hash -74773765, now seen corresponding path program 170 times [2022-01-18 09:31:04,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:04,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918572268] [2022-01-18 09:31:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:04,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:05,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:05,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918572268] [2022-01-18 09:31:05,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918572268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:05,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:05,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:31:05,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141451918] [2022-01-18 09:31:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:05,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:31:05,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:31:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:31:05,072 INFO L87 Difference]: Start difference. First operand 2352 states and 5938 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:07,523 INFO L93 Difference]: Finished difference Result 2842 states and 7008 transitions. [2022-01-18 09:31:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:31:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:07,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:07,526 INFO L225 Difference]: With dead ends: 2842 [2022-01-18 09:31:07,526 INFO L226 Difference]: Without dead ends: 2189 [2022-01-18 09:31:07,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=643, Invalid=3139, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 09:31:07,526 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 1360 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:07,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1360 Valid, 3185 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:07,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2022-01-18 09:31:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2086. [2022-01-18 09:31:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2086 states, 2085 states have (on average 2.51462829736211) internal successors, (5243), 2085 states have internal predecessors, (5243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2086 states to 2086 states and 5243 transitions. [2022-01-18 09:31:07,545 INFO L78 Accepts]: Start accepts. Automaton has 2086 states and 5243 transitions. Word has length 137 [2022-01-18 09:31:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:07,545 INFO L470 AbstractCegarLoop]: Abstraction has 2086 states and 5243 transitions. [2022-01-18 09:31:07,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2086 states and 5243 transitions. [2022-01-18 09:31:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:07,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:07,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:07,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 09:31:07,547 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:07,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash -625112829, now seen corresponding path program 171 times [2022-01-18 09:31:07,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:07,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280011034] [2022-01-18 09:31:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:07,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:08,293 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 09:31:08,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:08,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280011034] [2022-01-18 09:31:08,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280011034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:08,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:08,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:31:08,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012509439] [2022-01-18 09:31:08,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:08,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:31:08,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:08,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:31:08,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:31:08,294 INFO L87 Difference]: Start difference. First operand 2086 states and 5243 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:10,530 INFO L93 Difference]: Finished difference Result 2283 states and 5615 transitions. [2022-01-18 09:31:10,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:31:10,530 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:10,532 INFO L225 Difference]: With dead ends: 2283 [2022-01-18 09:31:10,532 INFO L226 Difference]: Without dead ends: 2134 [2022-01-18 09:31:10,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=574, Invalid=2618, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:31:10,533 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 1111 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:10,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2435 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2022-01-18 09:31:10,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2071. [2022-01-18 09:31:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2071 states, 2070 states have (on average 2.5159420289855072) internal successors, (5208), 2070 states have internal predecessors, (5208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 5208 transitions. [2022-01-18 09:31:10,551 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 5208 transitions. Word has length 137 [2022-01-18 09:31:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:10,551 INFO L470 AbstractCegarLoop]: Abstraction has 2071 states and 5208 transitions. [2022-01-18 09:31:10,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:10,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 5208 transitions. [2022-01-18 09:31:10,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:10,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:10,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:10,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 09:31:10,553 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:10,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:10,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1795602559, now seen corresponding path program 172 times [2022-01-18 09:31:10,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:10,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476293303] [2022-01-18 09:31:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:10,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:11,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:11,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476293303] [2022-01-18 09:31:11,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476293303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:11,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:11,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:31:11,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655217081] [2022-01-18 09:31:11,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:11,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:31:11,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:11,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:31:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:31:11,277 INFO L87 Difference]: Start difference. First operand 2071 states and 5208 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:13,497 INFO L93 Difference]: Finished difference Result 2211 states and 5462 transitions. [2022-01-18 09:31:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:31:13,497 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:13,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:13,500 INFO L225 Difference]: With dead ends: 2211 [2022-01-18 09:31:13,500 INFO L226 Difference]: Without dead ends: 2073 [2022-01-18 09:31:13,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=560, Invalid=2520, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:31:13,500 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1108 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:13,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 2706 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2022-01-18 09:31:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2069. [2022-01-18 09:31:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 2.516441005802708) internal successors, (5204), 2068 states have internal predecessors, (5204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 5204 transitions. [2022-01-18 09:31:13,519 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 5204 transitions. Word has length 137 [2022-01-18 09:31:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:13,519 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 5204 transitions. [2022-01-18 09:31:13,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 5204 transitions. [2022-01-18 09:31:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:13,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:13,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:13,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 09:31:13,522 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1025624163, now seen corresponding path program 173 times [2022-01-18 09:31:13,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:13,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574254390] [2022-01-18 09:31:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:13,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:14,427 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 09:31:14,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:14,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574254390] [2022-01-18 09:31:14,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574254390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:14,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:14,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:31:14,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075142233] [2022-01-18 09:31:14,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:14,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:31:14,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:14,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:31:14,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:31:14,428 INFO L87 Difference]: Start difference. First operand 2069 states and 5204 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:16,931 INFO L93 Difference]: Finished difference Result 2507 states and 6205 transitions. [2022-01-18 09:31:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 09:31:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:16,935 INFO L225 Difference]: With dead ends: 2507 [2022-01-18 09:31:16,935 INFO L226 Difference]: Without dead ends: 2373 [2022-01-18 09:31:16,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=630, Invalid=3152, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 09:31:16,935 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1402 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:16,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1402 Valid, 3183 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-01-18 09:31:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2279. [2022-01-18 09:31:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.5118525021949076) internal successors, (5722), 2278 states have internal predecessors, (5722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5722 transitions. [2022-01-18 09:31:16,958 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5722 transitions. Word has length 137 [2022-01-18 09:31:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:16,958 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5722 transitions. [2022-01-18 09:31:16,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5722 transitions. [2022-01-18 09:31:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:16,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:16,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:16,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 09:31:16,961 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:16,961 INFO L85 PathProgramCache]: Analyzing trace with hash 366386753, now seen corresponding path program 174 times [2022-01-18 09:31:16,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:16,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386457837] [2022-01-18 09:31:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:16,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:17,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:17,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386457837] [2022-01-18 09:31:17,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386457837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:17,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:17,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:31:17,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271541643] [2022-01-18 09:31:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:17,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:31:17,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:31:17,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:31:17,924 INFO L87 Difference]: Start difference. First operand 2279 states and 5722 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:20,591 INFO L93 Difference]: Finished difference Result 2771 states and 6795 transitions. [2022-01-18 09:31:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 09:31:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:20,594 INFO L225 Difference]: With dead ends: 2771 [2022-01-18 09:31:20,594 INFO L226 Difference]: Without dead ends: 2188 [2022-01-18 09:31:20,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=817, Invalid=3875, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 09:31:20,595 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1525 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:20,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 2933 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:20,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-01-18 09:31:20,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2083. [2022-01-18 09:31:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.506243996157541) internal successors, (5218), 2082 states have internal predecessors, (5218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:20,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 5218 transitions. [2022-01-18 09:31:20,614 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 5218 transitions. Word has length 137 [2022-01-18 09:31:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:20,614 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 5218 transitions. [2022-01-18 09:31:20,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 5218 transitions. [2022-01-18 09:31:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:20,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:20,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:20,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 09:31:20,616 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash -787823361, now seen corresponding path program 175 times [2022-01-18 09:31:20,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:20,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930733942] [2022-01-18 09:31:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:20,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:21,564 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 09:31:21,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:21,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930733942] [2022-01-18 09:31:21,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930733942] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:21,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:21,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:31:21,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498986258] [2022-01-18 09:31:21,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:21,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:31:21,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:31:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:31:21,565 INFO L87 Difference]: Start difference. First operand 2083 states and 5218 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:24,204 INFO L93 Difference]: Finished difference Result 2219 states and 5466 transitions. [2022-01-18 09:31:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 09:31:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:24,207 INFO L225 Difference]: With dead ends: 2219 [2022-01-18 09:31:24,207 INFO L226 Difference]: Without dead ends: 2055 [2022-01-18 09:31:24,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=722, Invalid=3568, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:31:24,207 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 1124 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:24,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 3132 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:24,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2022-01-18 09:31:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 2055. [2022-01-18 09:31:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 2054 states have (on average 2.5136319376825704) internal successors, (5163), 2054 states have internal predecessors, (5163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 5163 transitions. [2022-01-18 09:31:24,225 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 5163 transitions. Word has length 137 [2022-01-18 09:31:24,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:24,225 INFO L470 AbstractCegarLoop]: Abstraction has 2055 states and 5163 transitions. [2022-01-18 09:31:24,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:24,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 5163 transitions. [2022-01-18 09:31:24,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:24,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:24,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:24,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 09:31:24,227 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:24,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:24,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1877232731, now seen corresponding path program 176 times [2022-01-18 09:31:24,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:24,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87109615] [2022-01-18 09:31:24,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:24,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:25,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:25,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87109615] [2022-01-18 09:31:25,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87109615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:25,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:25,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:31:25,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374314532] [2022-01-18 09:31:25,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:25,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:31:25,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:25,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:31:25,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:31:25,264 INFO L87 Difference]: Start difference. First operand 2055 states and 5163 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:28,023 INFO L93 Difference]: Finished difference Result 2621 states and 6428 transitions. [2022-01-18 09:31:28,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:31:28,023 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:28,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:28,026 INFO L225 Difference]: With dead ends: 2621 [2022-01-18 09:31:28,027 INFO L226 Difference]: Without dead ends: 2487 [2022-01-18 09:31:28,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=747, Invalid=3675, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:31:28,027 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 1309 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:28,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 2862 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2022-01-18 09:31:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2321. [2022-01-18 09:31:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2320 states have (on average 2.50301724137931) internal successors, (5807), 2320 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 5807 transitions. [2022-01-18 09:31:28,047 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 5807 transitions. Word has length 137 [2022-01-18 09:31:28,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:28,047 INFO L470 AbstractCegarLoop]: Abstraction has 2321 states and 5807 transitions. [2022-01-18 09:31:28,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 5807 transitions. [2022-01-18 09:31:28,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:28,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:28,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:28,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 09:31:28,050 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:28,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:28,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1025723649, now seen corresponding path program 177 times [2022-01-18 09:31:28,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:28,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367464383] [2022-01-18 09:31:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:28,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:28,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:28,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:28,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367464383] [2022-01-18 09:31:28,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367464383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:28,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:28,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:31:28,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985624461] [2022-01-18 09:31:28,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:28,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:31:28,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:28,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:31:28,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:31:28,992 INFO L87 Difference]: Start difference. First operand 2321 states and 5807 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:31,744 INFO L93 Difference]: Finished difference Result 2885 states and 7018 transitions. [2022-01-18 09:31:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:31:31,745 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:31,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:31,748 INFO L225 Difference]: With dead ends: 2885 [2022-01-18 09:31:31,748 INFO L226 Difference]: Without dead ends: 2302 [2022-01-18 09:31:31,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=774, Invalid=3782, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 09:31:31,749 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 1585 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:31,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 3297 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:31:31,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-01-18 09:31:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2125. [2022-01-18 09:31:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 2124 states have (on average 2.4967043314500943) internal successors, (5303), 2124 states have internal predecessors, (5303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 5303 transitions. [2022-01-18 09:31:31,775 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 5303 transitions. Word has length 137 [2022-01-18 09:31:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:31,775 INFO L470 AbstractCegarLoop]: Abstraction has 2125 states and 5303 transitions. [2022-01-18 09:31:31,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 5303 transitions. [2022-01-18 09:31:31,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:31,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:31,778 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:31,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 09:31:31,778 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:31,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2115033533, now seen corresponding path program 178 times [2022-01-18 09:31:31,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:31,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969624467] [2022-01-18 09:31:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:31,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:32,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:32,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969624467] [2022-01-18 09:31:32,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969624467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:32,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:32,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:31:32,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126470196] [2022-01-18 09:31:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:32,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:31:32,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:31:32,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:31:32,741 INFO L87 Difference]: Start difference. First operand 2125 states and 5303 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:34,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:34,839 INFO L93 Difference]: Finished difference Result 2337 states and 5695 transitions. [2022-01-18 09:31:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:31:34,839 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:34,842 INFO L225 Difference]: With dead ends: 2337 [2022-01-18 09:31:34,842 INFO L226 Difference]: Without dead ends: 2187 [2022-01-18 09:31:34,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=566, Invalid=2626, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:31:34,843 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 977 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:34,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 2385 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:34,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-01-18 09:31:34,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2111. [2022-01-18 09:31:34,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 2110 states have (on average 2.5) internal successors, (5275), 2110 states have internal predecessors, (5275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:34,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 5275 transitions. [2022-01-18 09:31:34,860 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 5275 transitions. Word has length 137 [2022-01-18 09:31:34,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:34,860 INFO L470 AbstractCegarLoop]: Abstraction has 2111 states and 5275 transitions. [2022-01-18 09:31:34,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:34,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 5275 transitions. [2022-01-18 09:31:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:34,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:34,862 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:34,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 09:31:34,862 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:34,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:34,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1403837929, now seen corresponding path program 179 times [2022-01-18 09:31:34,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:34,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850806758] [2022-01-18 09:31:34,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:34,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:35,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:35,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850806758] [2022-01-18 09:31:35,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850806758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:35,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:35,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:31:35,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273007712] [2022-01-18 09:31:35,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:35,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:31:35,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:35,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:31:35,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:31:35,791 INFO L87 Difference]: Start difference. First operand 2111 states and 5275 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:37,965 INFO L93 Difference]: Finished difference Result 2319 states and 5661 transitions. [2022-01-18 09:31:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:31:37,966 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:37,968 INFO L225 Difference]: With dead ends: 2319 [2022-01-18 09:31:37,968 INFO L226 Difference]: Without dead ends: 2093 [2022-01-18 09:31:37,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=546, Invalid=2534, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:31:37,968 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 1148 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:37,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 2505 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2022-01-18 09:31:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2029. [2022-01-18 09:31:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2028 states have (on average 2.500493096646943) internal successors, (5071), 2028 states have internal predecessors, (5071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 5071 transitions. [2022-01-18 09:31:37,985 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 5071 transitions. Word has length 137 [2022-01-18 09:31:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:37,985 INFO L470 AbstractCegarLoop]: Abstraction has 2029 states and 5071 transitions. [2022-01-18 09:31:37,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 5071 transitions. [2022-01-18 09:31:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:37,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:37,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:37,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 09:31:37,987 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1327752357, now seen corresponding path program 180 times [2022-01-18 09:31:37,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070009235] [2022-01-18 09:31:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:37,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:38,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:38,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070009235] [2022-01-18 09:31:38,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070009235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:38,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:38,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:31:38,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496094011] [2022-01-18 09:31:38,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:38,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:31:38,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:31:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:31:38,667 INFO L87 Difference]: Start difference. First operand 2029 states and 5071 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:40,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:40,665 INFO L93 Difference]: Finished difference Result 2194 states and 5373 transitions. [2022-01-18 09:31:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:31:40,666 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:40,668 INFO L225 Difference]: With dead ends: 2194 [2022-01-18 09:31:40,668 INFO L226 Difference]: Without dead ends: 2085 [2022-01-18 09:31:40,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:31:40,669 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 987 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:40,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 2485 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:40,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2022-01-18 09:31:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2069. [2022-01-18 09:31:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 2.4893617021276597) internal successors, (5148), 2068 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 5148 transitions. [2022-01-18 09:31:40,689 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 5148 transitions. Word has length 137 [2022-01-18 09:31:40,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:40,689 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 5148 transitions. [2022-01-18 09:31:40,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 5148 transitions. [2022-01-18 09:31:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:40,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:40,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:40,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 09:31:40,691 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 872735973, now seen corresponding path program 181 times [2022-01-18 09:31:40,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:40,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452473380] [2022-01-18 09:31:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:40,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:41,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:41,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452473380] [2022-01-18 09:31:41,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452473380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:41,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:41,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:31:41,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544652514] [2022-01-18 09:31:41,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:41,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:31:41,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:41,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:31:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:31:41,371 INFO L87 Difference]: Start difference. First operand 2069 states and 5148 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:43,414 INFO L93 Difference]: Finished difference Result 2200 states and 5385 transitions. [2022-01-18 09:31:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:31:43,414 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:43,416 INFO L225 Difference]: With dead ends: 2200 [2022-01-18 09:31:43,416 INFO L226 Difference]: Without dead ends: 2099 [2022-01-18 09:31:43,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=557, Invalid=2523, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:31:43,417 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 1017 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:43,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 2319 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2022-01-18 09:31:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2083. [2022-01-18 09:31:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.4855907780979827) internal successors, (5175), 2082 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 5175 transitions. [2022-01-18 09:31:43,434 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 5175 transitions. Word has length 137 [2022-01-18 09:31:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:43,434 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 5175 transitions. [2022-01-18 09:31:43,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 5175 transitions. [2022-01-18 09:31:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:43,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:43,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:43,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 09:31:43,437 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:43,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2088492955, now seen corresponding path program 182 times [2022-01-18 09:31:43,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:43,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212892817] [2022-01-18 09:31:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:43,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:44,160 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 09:31:44,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:44,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212892817] [2022-01-18 09:31:44,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212892817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:44,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:44,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:31:44,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239371872] [2022-01-18 09:31:44,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:44,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:31:44,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:44,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:31:44,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:31:44,162 INFO L87 Difference]: Start difference. First operand 2083 states and 5175 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:46,131 INFO L93 Difference]: Finished difference Result 2426 states and 5979 transitions. [2022-01-18 09:31:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:31:46,132 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:46,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:46,134 INFO L225 Difference]: With dead ends: 2426 [2022-01-18 09:31:46,135 INFO L226 Difference]: Without dead ends: 2327 [2022-01-18 09:31:46,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:31:46,135 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1072 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:46,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 2502 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:46,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2022-01-18 09:31:46,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2279. [2022-01-18 09:31:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.486830553116769) internal successors, (5665), 2278 states have internal predecessors, (5665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5665 transitions. [2022-01-18 09:31:46,154 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5665 transitions. Word has length 137 [2022-01-18 09:31:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:46,155 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5665 transitions. [2022-01-18 09:31:46,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5665 transitions. [2022-01-18 09:31:46,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:46,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:46,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:46,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 09:31:46,157 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:46,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:46,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1880438811, now seen corresponding path program 183 times [2022-01-18 09:31:46,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:46,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833023944] [2022-01-18 09:31:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:46,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:47,113 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 09:31:47,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:47,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833023944] [2022-01-18 09:31:47,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833023944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:47,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:47,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:31:47,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60209532] [2022-01-18 09:31:47,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:47,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:31:47,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:31:47,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:31:47,114 INFO L87 Difference]: Start difference. First operand 2279 states and 5665 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:49,179 INFO L93 Difference]: Finished difference Result 2635 states and 6479 transitions. [2022-01-18 09:31:49,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:31:49,180 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:49,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:49,182 INFO L225 Difference]: With dead ends: 2635 [2022-01-18 09:31:49,182 INFO L226 Difference]: Without dead ends: 2360 [2022-01-18 09:31:49,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=567, Invalid=2625, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:31:49,183 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 1295 mSDsluCounter, 3093 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:49,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 3249 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:31:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-01-18 09:31:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2321. [2022-01-18 09:31:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2320 states have (on average 2.4719827586206895) internal successors, (5735), 2320 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 5735 transitions. [2022-01-18 09:31:49,202 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 5735 transitions. Word has length 137 [2022-01-18 09:31:49,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:49,202 INFO L470 AbstractCegarLoop]: Abstraction has 2321 states and 5735 transitions. [2022-01-18 09:31:49,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:49,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 5735 transitions. [2022-01-18 09:31:49,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:49,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:49,204 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:49,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 09:31:49,204 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash -935246781, now seen corresponding path program 184 times [2022-01-18 09:31:49,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:49,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365184148] [2022-01-18 09:31:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:49,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:50,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:50,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365184148] [2022-01-18 09:31:50,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365184148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:50,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:50,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:31:50,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043507320] [2022-01-18 09:31:50,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:50,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:31:50,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:50,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:31:50,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:31:50,095 INFO L87 Difference]: Start difference. First operand 2321 states and 5735 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:52,047 INFO L93 Difference]: Finished difference Result 2392 states and 5852 transitions. [2022-01-18 09:31:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:31:52,048 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:52,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:52,050 INFO L225 Difference]: With dead ends: 2392 [2022-01-18 09:31:52,050 INFO L226 Difference]: Without dead ends: 1999 [2022-01-18 09:31:52,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=537, Invalid=2543, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:31:52,051 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1137 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:52,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 2907 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2022-01-18 09:31:52,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2022-01-18 09:31:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1998 states have (on average 2.502002002002002) internal successors, (4999), 1998 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:52,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 4999 transitions. [2022-01-18 09:31:52,069 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 4999 transitions. Word has length 137 [2022-01-18 09:31:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:52,069 INFO L470 AbstractCegarLoop]: Abstraction has 1999 states and 4999 transitions. [2022-01-18 09:31:52,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 4999 transitions. [2022-01-18 09:31:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:52,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:52,072 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:52,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 09:31:52,072 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 89871867, now seen corresponding path program 185 times [2022-01-18 09:31:52,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344611344] [2022-01-18 09:31:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:52,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:52,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:52,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:52,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344611344] [2022-01-18 09:31:52,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344611344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:52,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:52,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:31:52,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271556008] [2022-01-18 09:31:52,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:52,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:31:52,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:52,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:31:52,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:31:52,778 INFO L87 Difference]: Start difference. First operand 1999 states and 4999 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:54,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:54,838 INFO L93 Difference]: Finished difference Result 2338 states and 5744 transitions. [2022-01-18 09:31:54,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:31:54,839 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:54,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:54,841 INFO L225 Difference]: With dead ends: 2338 [2022-01-18 09:31:54,841 INFO L226 Difference]: Without dead ends: 2229 [2022-01-18 09:31:54,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:31:54,842 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 927 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:54,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 2303 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:54,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2022-01-18 09:31:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2065. [2022-01-18 09:31:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 2064 states have (on average 2.51453488372093) internal successors, (5190), 2064 states have internal predecessors, (5190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 5190 transitions. [2022-01-18 09:31:54,860 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 5190 transitions. Word has length 137 [2022-01-18 09:31:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:54,860 INFO L470 AbstractCegarLoop]: Abstraction has 2065 states and 5190 transitions. [2022-01-18 09:31:54,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 5190 transitions. [2022-01-18 09:31:54,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:54,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:54,862 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:54,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 09:31:54,862 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:54,862 INFO L85 PathProgramCache]: Analyzing trace with hash -472645329, now seen corresponding path program 186 times [2022-01-18 09:31:54,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:54,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83617262] [2022-01-18 09:31:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:54,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:55,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:55,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83617262] [2022-01-18 09:31:55,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83617262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:55,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:55,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:31:55,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328775647] [2022-01-18 09:31:55,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:55,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:31:55,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:55,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:31:55,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:31:55,619 INFO L87 Difference]: Start difference. First operand 2065 states and 5190 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:31:57,665 INFO L93 Difference]: Finished difference Result 2298 states and 5654 transitions. [2022-01-18 09:31:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:31:57,666 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:31:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:31:57,668 INFO L225 Difference]: With dead ends: 2298 [2022-01-18 09:31:57,668 INFO L226 Difference]: Without dead ends: 2195 [2022-01-18 09:31:57,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=535, Invalid=2435, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:31:57,668 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 853 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:31:57,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 2197 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:31:57,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-01-18 09:31:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2063. [2022-01-18 09:31:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2063 states, 2062 states have (on average 2.51454898157129) internal successors, (5185), 2062 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2063 states to 2063 states and 5185 transitions. [2022-01-18 09:31:57,686 INFO L78 Accepts]: Start accepts. Automaton has 2063 states and 5185 transitions. Word has length 137 [2022-01-18 09:31:57,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:31:57,686 INFO L470 AbstractCegarLoop]: Abstraction has 2063 states and 5185 transitions. [2022-01-18 09:31:57,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:31:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2063 states and 5185 transitions. [2022-01-18 09:31:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:31:57,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:31:57,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:31:57,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 09:31:57,688 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:31:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:31:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1332607007, now seen corresponding path program 187 times [2022-01-18 09:31:57,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:31:57,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795531411] [2022-01-18 09:31:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:31:57,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:31:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:31:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:31:58,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:31:58,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795531411] [2022-01-18 09:31:58,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795531411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:31:58,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:31:58,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:31:58,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060083509] [2022-01-18 09:31:58,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:31:58,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:31:58,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:31:58,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:31:58,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=895, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:31:58,497 INFO L87 Difference]: Start difference. First operand 2063 states and 5185 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:00,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:00,732 INFO L93 Difference]: Finished difference Result 2310 states and 5672 transitions. [2022-01-18 09:32:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:32:00,733 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:00,735 INFO L225 Difference]: With dead ends: 2310 [2022-01-18 09:32:00,735 INFO L226 Difference]: Without dead ends: 2197 [2022-01-18 09:32:00,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=692, Invalid=3214, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 09:32:00,736 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 1177 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:00,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 2149 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2022-01-18 09:32:00,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2059. [2022-01-18 09:32:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 2058 states have (on average 2.512147716229349) internal successors, (5170), 2058 states have internal predecessors, (5170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:00,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 5170 transitions. [2022-01-18 09:32:00,755 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 5170 transitions. Word has length 137 [2022-01-18 09:32:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:00,755 INFO L470 AbstractCegarLoop]: Abstraction has 2059 states and 5170 transitions. [2022-01-18 09:32:00,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 5170 transitions. [2022-01-18 09:32:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:00,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:00,758 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:00,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 09:32:00,758 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:00,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:00,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1130734149, now seen corresponding path program 188 times [2022-01-18 09:32:00,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:00,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101649108] [2022-01-18 09:32:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:00,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:01,597 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 09:32:01,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:01,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101649108] [2022-01-18 09:32:01,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101649108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:01,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:01,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-18 09:32:01,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541500518] [2022-01-18 09:32:01,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:01,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-18 09:32:01,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:01,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-18 09:32:01,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2022-01-18 09:32:01,598 INFO L87 Difference]: Start difference. First operand 2059 states and 5170 transitions. Second operand has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:04,161 INFO L93 Difference]: Finished difference Result 2366 states and 5803 transitions. [2022-01-18 09:32:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:32:04,161 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:04,164 INFO L225 Difference]: With dead ends: 2366 [2022-01-18 09:32:04,164 INFO L226 Difference]: Without dead ends: 2257 [2022-01-18 09:32:04,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=750, Invalid=3540, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 09:32:04,165 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1293 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:04,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 2517 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:04,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-01-18 09:32:04,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2075. [2022-01-18 09:32:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 2074 states have (on average 2.5144648023143685) internal successors, (5215), 2074 states have internal predecessors, (5215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:04,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 5215 transitions. [2022-01-18 09:32:04,183 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 5215 transitions. Word has length 137 [2022-01-18 09:32:04,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:04,184 INFO L470 AbstractCegarLoop]: Abstraction has 2075 states and 5215 transitions. [2022-01-18 09:32:04,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.28125) internal successors, (137), 32 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:04,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 5215 transitions. [2022-01-18 09:32:04,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:04,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:04,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:04,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 09:32:04,186 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:04,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:04,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1693251345, now seen corresponding path program 189 times [2022-01-18 09:32:04,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:04,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903186595] [2022-01-18 09:32:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:04,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:04,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:04,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903186595] [2022-01-18 09:32:04,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903186595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:04,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:04,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:32:04,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818494992] [2022-01-18 09:32:04,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:04,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:32:04,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:04,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:32:04,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:32:04,862 INFO L87 Difference]: Start difference. First operand 2075 states and 5215 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:06,933 INFO L93 Difference]: Finished difference Result 2326 states and 5713 transitions. [2022-01-18 09:32:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:32:06,933 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:06,937 INFO L225 Difference]: With dead ends: 2326 [2022-01-18 09:32:06,937 INFO L226 Difference]: Without dead ends: 2223 [2022-01-18 09:32:06,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=565, Invalid=2515, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:32:06,938 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 1025 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:06,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 2067 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:32:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2022-01-18 09:32:06,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2073. [2022-01-18 09:32:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 2.51496138996139) internal successors, (5211), 2072 states have internal predecessors, (5211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 5211 transitions. [2022-01-18 09:32:06,958 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 5211 transitions. Word has length 137 [2022-01-18 09:32:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:06,958 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 5211 transitions. [2022-01-18 09:32:06,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:06,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 5211 transitions. [2022-01-18 09:32:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:06,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:06,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:06,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 09:32:06,961 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:06,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:06,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1560449595, now seen corresponding path program 190 times [2022-01-18 09:32:06,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:06,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694658107] [2022-01-18 09:32:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:06,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:07,705 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 09:32:07,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:07,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694658107] [2022-01-18 09:32:07,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694658107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:07,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:07,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:07,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546234462] [2022-01-18 09:32:07,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:07,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:07,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:07,706 INFO L87 Difference]: Start difference. First operand 2073 states and 5211 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:09,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:09,851 INFO L93 Difference]: Finished difference Result 2670 states and 6596 transitions. [2022-01-18 09:32:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:32:09,851 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:09,854 INFO L225 Difference]: With dead ends: 2670 [2022-01-18 09:32:09,854 INFO L226 Difference]: Without dead ends: 2561 [2022-01-18 09:32:09,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=545, Invalid=2535, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:32:09,855 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 1064 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:09,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 2748 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:09,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-01-18 09:32:09,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2143. [2022-01-18 09:32:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 2142 states have (on average 2.521942110177404) internal successors, (5402), 2142 states have internal predecessors, (5402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 5402 transitions. [2022-01-18 09:32:09,875 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 5402 transitions. Word has length 137 [2022-01-18 09:32:09,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:09,875 INFO L470 AbstractCegarLoop]: Abstraction has 2143 states and 5402 transitions. [2022-01-18 09:32:09,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 5402 transitions. [2022-01-18 09:32:09,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:09,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:09,877 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:09,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 09:32:09,877 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1118340155, now seen corresponding path program 191 times [2022-01-18 09:32:09,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:09,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344411736] [2022-01-18 09:32:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:09,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:10,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:10,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344411736] [2022-01-18 09:32:10,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344411736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:10,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:10,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:10,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021867362] [2022-01-18 09:32:10,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:10,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:10,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:10,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:10,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:10,644 INFO L87 Difference]: Start difference. First operand 2143 states and 5402 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:12,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:12,742 INFO L93 Difference]: Finished difference Result 2870 states and 7126 transitions. [2022-01-18 09:32:12,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:32:12,743 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:12,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:12,746 INFO L225 Difference]: With dead ends: 2870 [2022-01-18 09:32:12,746 INFO L226 Difference]: Without dead ends: 2771 [2022-01-18 09:32:12,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=546, Invalid=2534, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:32:12,746 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 1133 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:12,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 2553 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-01-18 09:32:12,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 2339. [2022-01-18 09:32:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.5201026518391787) internal successors, (5892), 2338 states have internal predecessors, (5892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:12,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5892 transitions. [2022-01-18 09:32:12,767 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5892 transitions. Word has length 137 [2022-01-18 09:32:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:12,767 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5892 transitions. [2022-01-18 09:32:12,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:12,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5892 transitions. [2022-01-18 09:32:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:12,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:12,769 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:12,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 09:32:12,769 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:12,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:12,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1352668219, now seen corresponding path program 192 times [2022-01-18 09:32:12,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622540680] [2022-01-18 09:32:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:12,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:13,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:13,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622540680] [2022-01-18 09:32:13,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622540680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:13,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:13,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:32:13,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508962743] [2022-01-18 09:32:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:13,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:32:13,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:13,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:32:13,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:32:13,703 INFO L87 Difference]: Start difference. First operand 2339 states and 5892 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:15,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:15,911 INFO L93 Difference]: Finished difference Result 3079 states and 7626 transitions. [2022-01-18 09:32:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:32:15,912 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:15,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:15,915 INFO L225 Difference]: With dead ends: 3079 [2022-01-18 09:32:15,915 INFO L226 Difference]: Without dead ends: 2804 [2022-01-18 09:32:15,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=577, Invalid=2729, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 09:32:15,916 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 1385 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:15,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 3419 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:15,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-01-18 09:32:15,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2381. [2022-01-18 09:32:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2380 states have (on average 2.5050420168067227) internal successors, (5962), 2380 states have internal predecessors, (5962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 5962 transitions. [2022-01-18 09:32:15,939 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 5962 transitions. Word has length 137 [2022-01-18 09:32:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:15,940 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 5962 transitions. [2022-01-18 09:32:15,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 5962 transitions. [2022-01-18 09:32:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:15,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:15,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:15,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 09:32:15,943 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:15,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:15,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1997107047, now seen corresponding path program 193 times [2022-01-18 09:32:15,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:15,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691343509] [2022-01-18 09:32:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:15,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:16,903 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 09:32:16,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:16,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691343509] [2022-01-18 09:32:16,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691343509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:16,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:16,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:32:16,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991318709] [2022-01-18 09:32:16,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:16,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:32:16,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:32:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:32:16,904 INFO L87 Difference]: Start difference. First operand 2381 states and 5962 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:19,020 INFO L93 Difference]: Finished difference Result 2836 states and 6999 transitions. [2022-01-18 09:32:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:32:19,020 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:19,023 INFO L225 Difference]: With dead ends: 2836 [2022-01-18 09:32:19,023 INFO L226 Difference]: Without dead ends: 2457 [2022-01-18 09:32:19,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=549, Invalid=2643, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:32:19,023 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 1380 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:19,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 3049 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:19,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2022-01-18 09:32:19,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2073. [2022-01-18 09:32:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 2.5082046332046333) internal successors, (5197), 2072 states have internal predecessors, (5197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 5197 transitions. [2022-01-18 09:32:19,042 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 5197 transitions. Word has length 137 [2022-01-18 09:32:19,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:19,042 INFO L470 AbstractCegarLoop]: Abstraction has 2073 states and 5197 transitions. [2022-01-18 09:32:19,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:19,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 5197 transitions. [2022-01-18 09:32:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:19,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:19,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:19,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 09:32:19,044 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:19,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash 397729647, now seen corresponding path program 194 times [2022-01-18 09:32:19,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:19,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046928726] [2022-01-18 09:32:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:19,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:19,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:19,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046928726] [2022-01-18 09:32:19,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046928726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:19,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:19,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:19,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256565057] [2022-01-18 09:32:19,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:19,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:19,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:19,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:19,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:19,731 INFO L87 Difference]: Start difference. First operand 2073 states and 5197 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:21,900 INFO L93 Difference]: Finished difference Result 2332 states and 5698 transitions. [2022-01-18 09:32:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 09:32:21,900 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:21,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:21,903 INFO L225 Difference]: With dead ends: 2332 [2022-01-18 09:32:21,903 INFO L226 Difference]: Without dead ends: 2231 [2022-01-18 09:32:21,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=582, Invalid=2610, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:32:21,904 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 1085 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2453 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:21,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 2453 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-01-18 09:32:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2087. [2022-01-18 09:32:21,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 2086 states have (on average 2.50431447746884) internal successors, (5224), 2086 states have internal predecessors, (5224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 5224 transitions. [2022-01-18 09:32:21,925 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 5224 transitions. Word has length 137 [2022-01-18 09:32:21,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:21,925 INFO L470 AbstractCegarLoop]: Abstraction has 2087 states and 5224 transitions. [2022-01-18 09:32:21,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:21,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 5224 transitions. [2022-01-18 09:32:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:21,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:21,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:21,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 09:32:21,928 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:21,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:21,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1731468015, now seen corresponding path program 195 times [2022-01-18 09:32:21,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:21,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981930842] [2022-01-18 09:32:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:21,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:22,720 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 09:32:22,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:22,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981930842] [2022-01-18 09:32:22,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981930842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:22,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:22,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:22,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091246793] [2022-01-18 09:32:22,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:22,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:22,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:22,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:22,721 INFO L87 Difference]: Start difference. First operand 2087 states and 5224 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:24,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:24,740 INFO L93 Difference]: Finished difference Result 2558 states and 6292 transitions. [2022-01-18 09:32:24,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:32:24,741 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:24,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:24,744 INFO L225 Difference]: With dead ends: 2558 [2022-01-18 09:32:24,744 INFO L226 Difference]: Without dead ends: 2459 [2022-01-18 09:32:24,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=549, Invalid=2531, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:32:24,744 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1070 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:24,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 2355 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:24,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2022-01-18 09:32:24,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2283. [2022-01-18 09:32:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2282 states have (on average 2.5039439088518844) internal successors, (5714), 2282 states have internal predecessors, (5714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 5714 transitions. [2022-01-18 09:32:24,764 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 5714 transitions. Word has length 137 [2022-01-18 09:32:24,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:24,765 INFO L470 AbstractCegarLoop]: Abstraction has 2283 states and 5714 transitions. [2022-01-18 09:32:24,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:24,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 5714 transitions. [2022-01-18 09:32:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:24,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:24,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:24,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 09:32:24,767 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:24,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1939522159, now seen corresponding path program 196 times [2022-01-18 09:32:24,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:24,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735482825] [2022-01-18 09:32:24,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:24,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:25,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:25,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735482825] [2022-01-18 09:32:25,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735482825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:25,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:25,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-18 09:32:25,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619812277] [2022-01-18 09:32:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:25,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-18 09:32:25,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:25,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-18 09:32:25,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=970, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 09:32:25,616 INFO L87 Difference]: Start difference. First operand 2283 states and 5714 transitions. Second operand has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:28,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:28,225 INFO L93 Difference]: Finished difference Result 2767 states and 6792 transitions. [2022-01-18 09:32:28,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 09:32:28,225 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:28,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:28,228 INFO L225 Difference]: With dead ends: 2767 [2022-01-18 09:32:28,228 INFO L226 Difference]: Without dead ends: 2492 [2022-01-18 09:32:28,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=713, Invalid=3709, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:32:28,229 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 1307 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:28,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 3158 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:28,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2022-01-18 09:32:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2325. [2022-01-18 09:32:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 2.4888123924268504) internal successors, (5784), 2324 states have internal predecessors, (5784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 5784 transitions. [2022-01-18 09:32:28,250 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 5784 transitions. Word has length 137 [2022-01-18 09:32:28,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:28,250 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 5784 transitions. [2022-01-18 09:32:28,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.151515151515151) internal successors, (137), 33 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 5784 transitions. [2022-01-18 09:32:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:28,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:28,253 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:28,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 09:32:28,253 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:28,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1410253107, now seen corresponding path program 197 times [2022-01-18 09:32:28,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:28,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239978217] [2022-01-18 09:32:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:28,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:29,169 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 09:32:29,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:29,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239978217] [2022-01-18 09:32:29,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239978217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:29,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:29,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:32:29,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900328711] [2022-01-18 09:32:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:29,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:32:29,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:29,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:32:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:32:29,170 INFO L87 Difference]: Start difference. First operand 2325 states and 5784 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:31,182 INFO L93 Difference]: Finished difference Result 2524 states and 6165 transitions. [2022-01-18 09:32:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:32:31,182 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:31,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:31,185 INFO L225 Difference]: With dead ends: 2524 [2022-01-18 09:32:31,185 INFO L226 Difference]: Without dead ends: 2187 [2022-01-18 09:32:31,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=557, Invalid=2635, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:32:31,186 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 1248 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:31,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 2770 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:31,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2022-01-18 09:32:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2059. [2022-01-18 09:32:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2059 states, 2058 states have (on average 2.5053449951409137) internal successors, (5156), 2058 states have internal predecessors, (5156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 5156 transitions. [2022-01-18 09:32:31,204 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 5156 transitions. Word has length 137 [2022-01-18 09:32:31,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:31,205 INFO L470 AbstractCegarLoop]: Abstraction has 2059 states and 5156 transitions. [2022-01-18 09:32:31,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 5156 transitions. [2022-01-18 09:32:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:31,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:31,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:31,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 09:32:31,207 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:31,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:31,207 INFO L85 PathProgramCache]: Analyzing trace with hash -936705695, now seen corresponding path program 198 times [2022-01-18 09:32:31,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:31,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642227565] [2022-01-18 09:32:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:31,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:32,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:32,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642227565] [2022-01-18 09:32:32,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642227565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:32,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:32,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:32,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994929674] [2022-01-18 09:32:32,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:32,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:32,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:32,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:32,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:32,007 INFO L87 Difference]: Start difference. First operand 2059 states and 5156 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:34,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:34,126 INFO L93 Difference]: Finished difference Result 2312 states and 5641 transitions. [2022-01-18 09:32:34,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:32:34,127 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:34,129 INFO L225 Difference]: With dead ends: 2312 [2022-01-18 09:32:34,129 INFO L226 Difference]: Without dead ends: 2205 [2022-01-18 09:32:34,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:32:34,130 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 910 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:34,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 2430 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:34,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2022-01-18 09:32:34,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2115. [2022-01-18 09:32:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 2114 states have (on average 2.4971617786187323) internal successors, (5279), 2114 states have internal predecessors, (5279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 5279 transitions. [2022-01-18 09:32:34,148 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 5279 transitions. Word has length 137 [2022-01-18 09:32:34,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:34,148 INFO L470 AbstractCegarLoop]: Abstraction has 2115 states and 5279 transitions. [2022-01-18 09:32:34,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 5279 transitions. [2022-01-18 09:32:34,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:34,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:34,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:34,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 09:32:34,150 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1391722079, now seen corresponding path program 199 times [2022-01-18 09:32:34,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847983312] [2022-01-18 09:32:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:34,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:34,900 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 09:32:34,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:34,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847983312] [2022-01-18 09:32:34,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847983312] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:34,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:34,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:34,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419713326] [2022-01-18 09:32:34,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:34,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:34,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:34,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:34,901 INFO L87 Difference]: Start difference. First operand 2115 states and 5279 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:36,994 INFO L93 Difference]: Finished difference Result 2310 states and 5640 transitions. [2022-01-18 09:32:36,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:32:36,995 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:36,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:36,997 INFO L225 Difference]: With dead ends: 2310 [2022-01-18 09:32:36,997 INFO L226 Difference]: Without dead ends: 2209 [2022-01-18 09:32:36,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=557, Invalid=2523, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:32:36,998 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 1061 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:36,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 2213 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:37,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2022-01-18 09:32:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2129. [2022-01-18 09:32:37,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 2128 states have (on average 2.4934210526315788) internal successors, (5306), 2128 states have internal predecessors, (5306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 5306 transitions. [2022-01-18 09:32:37,016 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 5306 transitions. Word has length 137 [2022-01-18 09:32:37,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:37,016 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 5306 transitions. [2022-01-18 09:32:37,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:37,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 5306 transitions. [2022-01-18 09:32:37,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:37,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:37,018 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:37,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 09:32:37,019 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:37,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:37,019 INFO L85 PathProgramCache]: Analyzing trace with hash -57983711, now seen corresponding path program 200 times [2022-01-18 09:32:37,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:37,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75823003] [2022-01-18 09:32:37,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:37,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:37,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:37,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75823003] [2022-01-18 09:32:37,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75823003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:37,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:37,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:37,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658344227] [2022-01-18 09:32:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:37,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:37,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:37,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:37,699 INFO L87 Difference]: Start difference. First operand 2129 states and 5306 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:39,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:39,565 INFO L93 Difference]: Finished difference Result 2536 states and 6234 transitions. [2022-01-18 09:32:39,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:32:39,565 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:39,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:39,569 INFO L225 Difference]: With dead ends: 2536 [2022-01-18 09:32:39,569 INFO L226 Difference]: Without dead ends: 2437 [2022-01-18 09:32:39,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:32:39,569 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 1164 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:39,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 2297 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2022-01-18 09:32:39,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2325. [2022-01-18 09:32:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 2.4939759036144578) internal successors, (5796), 2324 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:39,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 5796 transitions. [2022-01-18 09:32:39,594 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 5796 transitions. Word has length 137 [2022-01-18 09:32:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:39,594 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 5796 transitions. [2022-01-18 09:32:39,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 5796 transitions. [2022-01-18 09:32:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:39,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:39,596 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:39,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 09:32:39,596 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:39,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:39,597 INFO L85 PathProgramCache]: Analyzing trace with hash 150070433, now seen corresponding path program 201 times [2022-01-18 09:32:39,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:39,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368647223] [2022-01-18 09:32:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:39,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:40,554 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 09:32:40,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:40,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368647223] [2022-01-18 09:32:40,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368647223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:40,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:40,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:32:40,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040267110] [2022-01-18 09:32:40,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:40,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:32:40,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:40,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:32:40,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:32:40,555 INFO L87 Difference]: Start difference. First operand 2325 states and 5796 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:43,103 INFO L93 Difference]: Finished difference Result 2745 states and 6734 transitions. [2022-01-18 09:32:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 09:32:43,103 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:43,106 INFO L225 Difference]: With dead ends: 2745 [2022-01-18 09:32:43,106 INFO L226 Difference]: Without dead ends: 2470 [2022-01-18 09:32:43,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=762, Invalid=3660, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:32:43,107 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1370 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:43,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 3425 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:43,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-01-18 09:32:43,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2367. [2022-01-18 09:32:43,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2366 states have (on average 2.4792899408284024) internal successors, (5866), 2366 states have internal predecessors, (5866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 5866 transitions. [2022-01-18 09:32:43,127 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 5866 transitions. Word has length 137 [2022-01-18 09:32:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:43,127 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 5866 transitions. [2022-01-18 09:32:43,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 5866 transitions. [2022-01-18 09:32:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:43,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:43,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:43,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 09:32:43,130 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:43,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:43,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1095262463, now seen corresponding path program 202 times [2022-01-18 09:32:43,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:43,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333770023] [2022-01-18 09:32:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:43,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:43,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:43,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333770023] [2022-01-18 09:32:43,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333770023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:43,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:43,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:32:43,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426170742] [2022-01-18 09:32:43,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:43,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:32:43,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:43,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:32:43,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:32:43,772 INFO L87 Difference]: Start difference. First operand 2367 states and 5866 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:45,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:45,585 INFO L93 Difference]: Finished difference Result 2502 states and 6107 transitions. [2022-01-18 09:32:45,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:32:45,585 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:45,588 INFO L225 Difference]: With dead ends: 2502 [2022-01-18 09:32:45,588 INFO L226 Difference]: Without dead ends: 2095 [2022-01-18 09:32:45,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=489, Invalid=2267, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:32:45,588 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 1151 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:45,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 2740 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2022-01-18 09:32:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2031. [2022-01-18 09:32:45,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2030 states have (on average 2.4931034482758623) internal successors, (5061), 2030 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:45,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 5061 transitions. [2022-01-18 09:32:45,606 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 5061 transitions. Word has length 137 [2022-01-18 09:32:45,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:45,606 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 5061 transitions. [2022-01-18 09:32:45,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:45,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 5061 transitions. [2022-01-18 09:32:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:45,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:45,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:45,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 09:32:45,608 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:45,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:45,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1843929917, now seen corresponding path program 203 times [2022-01-18 09:32:45,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:45,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754332470] [2022-01-18 09:32:45,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:45,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:46,296 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 09:32:46,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:46,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754332470] [2022-01-18 09:32:46,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754332470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:46,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:46,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 09:32:46,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113604541] [2022-01-18 09:32:46,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:46,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 09:32:46,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:46,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 09:32:46,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-01-18 09:32:46,297 INFO L87 Difference]: Start difference. First operand 2031 states and 5061 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:48,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:48,273 INFO L93 Difference]: Finished difference Result 2207 states and 5383 transitions. [2022-01-18 09:32:48,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:32:48,274 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:48,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:48,277 INFO L225 Difference]: With dead ends: 2207 [2022-01-18 09:32:48,277 INFO L226 Difference]: Without dead ends: 2061 [2022-01-18 09:32:48,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=500, Invalid=2256, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 09:32:48,278 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 954 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:48,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 2229 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:32:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2061 states. [2022-01-18 09:32:48,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2061 to 2029. [2022-01-18 09:32:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2028 states have (on average 2.4935897435897436) internal successors, (5057), 2028 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 5057 transitions. [2022-01-18 09:32:48,296 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 5057 transitions. Word has length 137 [2022-01-18 09:32:48,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:48,296 INFO L470 AbstractCegarLoop]: Abstraction has 2029 states and 5057 transitions. [2022-01-18 09:32:48,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 5057 transitions. [2022-01-18 09:32:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:48,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:48,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:48,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 09:32:48,298 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1528138941, now seen corresponding path program 204 times [2022-01-18 09:32:48,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637377779] [2022-01-18 09:32:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:48,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:49,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:49,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637377779] [2022-01-18 09:32:49,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637377779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:49,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:49,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:32:49,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023392023] [2022-01-18 09:32:49,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:49,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:32:49,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:32:49,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:32:49,008 INFO L87 Difference]: Start difference. First operand 2029 states and 5057 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:51,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:51,052 INFO L93 Difference]: Finished difference Result 2229 states and 5429 transitions. [2022-01-18 09:32:51,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:32:51,053 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:51,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:51,055 INFO L225 Difference]: With dead ends: 2229 [2022-01-18 09:32:51,055 INFO L226 Difference]: Without dead ends: 2085 [2022-01-18 09:32:51,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=515, Invalid=2347, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:32:51,056 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 924 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:51,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 2482 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2022-01-18 09:32:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2069. [2022-01-18 09:32:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 2.4825918762088977) internal successors, (5134), 2068 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:51,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 5134 transitions. [2022-01-18 09:32:51,073 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 5134 transitions. Word has length 137 [2022-01-18 09:32:51,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:51,073 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 5134 transitions. [2022-01-18 09:32:51,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 5134 transitions. [2022-01-18 09:32:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:51,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:51,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:51,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 09:32:51,075 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1221112673, now seen corresponding path program 205 times [2022-01-18 09:32:51,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:51,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253953222] [2022-01-18 09:32:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:51,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:52,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:52,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253953222] [2022-01-18 09:32:52,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253953222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:52,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:52,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:32:52,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029828720] [2022-01-18 09:32:52,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:52,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:32:52,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:52,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:32:52,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:32:52,006 INFO L87 Difference]: Start difference. First operand 2069 states and 5134 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:54,105 INFO L93 Difference]: Finished difference Result 2507 states and 6135 transitions. [2022-01-18 09:32:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:32:54,105 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:54,108 INFO L225 Difference]: With dead ends: 2507 [2022-01-18 09:32:54,108 INFO L226 Difference]: Without dead ends: 2373 [2022-01-18 09:32:54,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:32:54,109 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1168 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:54,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1168 Valid, 2801 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:54,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-01-18 09:32:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2279. [2022-01-18 09:32:54,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2278 states have (on average 2.481123792800702) internal successors, (5652), 2278 states have internal predecessors, (5652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 5652 transitions. [2022-01-18 09:32:54,128 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 5652 transitions. Word has length 137 [2022-01-18 09:32:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:54,128 INFO L470 AbstractCegarLoop]: Abstraction has 2279 states and 5652 transitions. [2022-01-18 09:32:54,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 5652 transitions. [2022-01-18 09:32:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:54,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:54,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:54,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 09:32:54,130 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash 170898243, now seen corresponding path program 206 times [2022-01-18 09:32:54,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:54,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257448835] [2022-01-18 09:32:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:54,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:55,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:55,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257448835] [2022-01-18 09:32:55,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257448835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:55,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:55,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:32:55,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062729932] [2022-01-18 09:32:55,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:55,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:32:55,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:55,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:32:55,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:32:55,109 INFO L87 Difference]: Start difference. First operand 2279 states and 5652 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:32:57,447 INFO L93 Difference]: Finished difference Result 2771 states and 6725 transitions. [2022-01-18 09:32:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 09:32:57,447 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:32:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:32:57,450 INFO L225 Difference]: With dead ends: 2771 [2022-01-18 09:32:57,450 INFO L226 Difference]: Without dead ends: 2188 [2022-01-18 09:32:57,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=631, Invalid=3029, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 09:32:57,451 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1417 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:32:57,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 3465 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:32:57,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-01-18 09:32:57,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2083. [2022-01-18 09:32:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.472622478386167) internal successors, (5148), 2082 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 5148 transitions. [2022-01-18 09:32:57,471 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 5148 transitions. Word has length 137 [2022-01-18 09:32:57,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:32:57,471 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 5148 transitions. [2022-01-18 09:32:57,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:32:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 5148 transitions. [2022-01-18 09:32:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:32:57,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:32:57,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:32:57,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 09:32:57,474 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:32:57,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:32:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash -983311871, now seen corresponding path program 207 times [2022-01-18 09:32:57,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:32:57,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002863375] [2022-01-18 09:32:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:32:57,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:32:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:32:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:32:58,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:32:58,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002863375] [2022-01-18 09:32:58,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002863375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:32:58,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:32:58,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:32:58,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338829189] [2022-01-18 09:32:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:32:58,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:32:58,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:32:58,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:32:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:32:58,374 INFO L87 Difference]: Start difference. First operand 2083 states and 5148 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:00,871 INFO L93 Difference]: Finished difference Result 2219 states and 5396 transitions. [2022-01-18 09:33:00,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:33:00,872 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:00,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:00,874 INFO L225 Difference]: With dead ends: 2219 [2022-01-18 09:33:00,874 INFO L226 Difference]: Without dead ends: 1985 [2022-01-18 09:33:00,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=708, Invalid=3452, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 09:33:00,875 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 1164 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:00,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 3021 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 09:33:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2022-01-18 09:33:00,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1985. [2022-01-18 09:33:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1984 states have (on average 2.498991935483871) internal successors, (4958), 1984 states have internal predecessors, (4958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:00,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 4958 transitions. [2022-01-18 09:33:00,892 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 4958 transitions. Word has length 137 [2022-01-18 09:33:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:00,892 INFO L470 AbstractCegarLoop]: Abstraction has 1985 states and 4958 transitions. [2022-01-18 09:33:00,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:00,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 4958 transitions. [2022-01-18 09:33:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:00,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:00,894 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:00,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 09:33:00,894 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:00,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:00,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1503061787, now seen corresponding path program 208 times [2022-01-18 09:33:00,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:00,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795372678] [2022-01-18 09:33:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:00,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:01,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:01,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:01,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795372678] [2022-01-18 09:33:01,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795372678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:01,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:01,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:33:01,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498369490] [2022-01-18 09:33:01,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:01,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:33:01,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:01,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:33:01,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:33:01,580 INFO L87 Difference]: Start difference. First operand 1985 states and 4958 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:03,685 INFO L93 Difference]: Finished difference Result 2178 states and 5342 transitions. [2022-01-18 09:33:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:33:03,685 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:03,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:03,688 INFO L225 Difference]: With dead ends: 2178 [2022-01-18 09:33:03,688 INFO L226 Difference]: Without dead ends: 2039 [2022-01-18 09:33:03,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=541, Invalid=2539, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:33:03,688 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 932 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:03,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 2088 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:33:03,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-01-18 09:33:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1991. [2022-01-18 09:33:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1990 states have (on average 2.4959798994974873) internal successors, (4967), 1990 states have internal predecessors, (4967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 4967 transitions. [2022-01-18 09:33:03,706 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 4967 transitions. Word has length 137 [2022-01-18 09:33:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:03,706 INFO L470 AbstractCegarLoop]: Abstraction has 1991 states and 4967 transitions. [2022-01-18 09:33:03,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 4967 transitions. [2022-01-18 09:33:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:03,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:03,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:03,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 09:33:03,708 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 320274959, now seen corresponding path program 209 times [2022-01-18 09:33:03,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:03,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624777415] [2022-01-18 09:33:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:03,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:04,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:04,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624777415] [2022-01-18 09:33:04,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624777415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:04,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:04,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:33:04,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259493014] [2022-01-18 09:33:04,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:04,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:33:04,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:04,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:33:04,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:33:04,382 INFO L87 Difference]: Start difference. First operand 1991 states and 4967 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:06,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:06,359 INFO L93 Difference]: Finished difference Result 2146 states and 5260 transitions. [2022-01-18 09:33:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:33:06,360 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:06,362 INFO L225 Difference]: With dead ends: 2146 [2022-01-18 09:33:06,362 INFO L226 Difference]: Without dead ends: 2037 [2022-01-18 09:33:06,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=547, Invalid=2533, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 09:33:06,363 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 1011 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:06,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 1914 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 09:33:06,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-01-18 09:33:06,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1993. [2022-01-18 09:33:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1992 states have (on average 2.494979919678715) internal successors, (4970), 1992 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 4970 transitions. [2022-01-18 09:33:06,379 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 4970 transitions. Word has length 137 [2022-01-18 09:33:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:06,379 INFO L470 AbstractCegarLoop]: Abstraction has 1993 states and 4970 transitions. [2022-01-18 09:33:06,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 4970 transitions. [2022-01-18 09:33:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:06,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:06,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:06,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 09:33:06,381 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash -242242237, now seen corresponding path program 210 times [2022-01-18 09:33:06,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:06,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565887114] [2022-01-18 09:33:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:06,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:07,042 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 09:33:07,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:07,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565887114] [2022-01-18 09:33:07,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565887114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:07,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:07,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:33:07,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434353036] [2022-01-18 09:33:07,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:07,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:33:07,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:07,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:33:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:33:07,043 INFO L87 Difference]: Start difference. First operand 1993 states and 4970 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:09,066 INFO L93 Difference]: Finished difference Result 2102 states and 5164 transitions. [2022-01-18 09:33:09,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:33:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:09,069 INFO L225 Difference]: With dead ends: 2102 [2022-01-18 09:33:09,069 INFO L226 Difference]: Without dead ends: 1993 [2022-01-18 09:33:09,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=538, Invalid=2432, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:33:09,069 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 891 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:09,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 2479 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:33:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-01-18 09:33:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1985. [2022-01-18 09:33:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1985 states, 1984 states have (on average 2.495967741935484) internal successors, (4952), 1984 states have internal predecessors, (4952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1985 states to 1985 states and 4952 transitions. [2022-01-18 09:33:09,087 INFO L78 Accepts]: Start accepts. Automaton has 1985 states and 4952 transitions. Word has length 137 [2022-01-18 09:33:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:09,087 INFO L470 AbstractCegarLoop]: Abstraction has 1985 states and 4952 transitions. [2022-01-18 09:33:09,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1985 states and 4952 transitions. [2022-01-18 09:33:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:09,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:09,089 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:09,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 09:33:09,089 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash 7263999, now seen corresponding path program 211 times [2022-01-18 09:33:09,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:09,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803325894] [2022-01-18 09:33:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:09,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:09,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:09,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803325894] [2022-01-18 09:33:09,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803325894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:09,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:09,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-18 09:33:09,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473151987] [2022-01-18 09:33:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:09,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-18 09:33:09,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-18 09:33:09,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1013, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 09:33:09,973 INFO L87 Difference]: Start difference. First operand 1985 states and 4952 transitions. Second operand has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:12,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:12,439 INFO L93 Difference]: Finished difference Result 2156 states and 5277 transitions. [2022-01-18 09:33:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 09:33:12,439 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:12,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:12,442 INFO L225 Difference]: With dead ends: 2156 [2022-01-18 09:33:12,442 INFO L226 Difference]: Without dead ends: 2047 [2022-01-18 09:33:12,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=700, Invalid=3460, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 09:33:12,443 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 1056 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:12,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 2483 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:33:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-01-18 09:33:12,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1995. [2022-01-18 09:33:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1995 states, 1994 states have (on average 2.4949849548645937) internal successors, (4975), 1994 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 4975 transitions. [2022-01-18 09:33:12,462 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 4975 transitions. Word has length 137 [2022-01-18 09:33:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:12,462 INFO L470 AbstractCegarLoop]: Abstraction has 1995 states and 4975 transitions. [2022-01-18 09:33:12,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.029411764705882) internal successors, (137), 34 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:12,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 4975 transitions. [2022-01-18 09:33:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:12,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:12,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:12,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 09:33:12,465 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:12,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash -555253197, now seen corresponding path program 212 times [2022-01-18 09:33:12,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:12,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402633452] [2022-01-18 09:33:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:12,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:13,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:13,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402633452] [2022-01-18 09:33:13,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402633452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:13,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:13,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-18 09:33:13,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158483924] [2022-01-18 09:33:13,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:13,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-18 09:33:13,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:13,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-18 09:33:13,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2022-01-18 09:33:13,317 INFO L87 Difference]: Start difference. First operand 1995 states and 4975 transitions. Second operand has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:15,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:15,366 INFO L93 Difference]: Finished difference Result 2116 states and 5187 transitions. [2022-01-18 09:33:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 09:33:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:15,369 INFO L225 Difference]: With dead ends: 2116 [2022-01-18 09:33:15,369 INFO L226 Difference]: Without dead ends: 2013 [2022-01-18 09:33:15,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=562, Invalid=2630, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 09:33:15,370 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 1198 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:15,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 1977 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 09:33:15,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-01-18 09:33:15,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1993. [2022-01-18 09:33:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1992 states have (on average 2.494979919678715) internal successors, (4970), 1992 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:15,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 4970 transitions. [2022-01-18 09:33:15,387 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 4970 transitions. Word has length 137 [2022-01-18 09:33:15,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:15,387 INFO L470 AbstractCegarLoop]: Abstraction has 1993 states and 4970 transitions. [2022-01-18 09:33:15,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.419354838709677) internal successors, (137), 31 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:15,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 4970 transitions. [2022-01-18 09:33:15,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:15,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:15,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:15,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 09:33:15,389 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:15,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1415214875, now seen corresponding path program 213 times [2022-01-18 09:33:15,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:15,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678518493] [2022-01-18 09:33:15,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:15,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:33:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:33:16,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:33:16,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678518493] [2022-01-18 09:33:16,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678518493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:33:16,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:33:16,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-18 09:33:16,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952956604] [2022-01-18 09:33:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:33:16,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:33:16,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:33:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:33:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-01-18 09:33:16,100 INFO L87 Difference]: Start difference. First operand 1993 states and 4970 transitions. Second operand has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:33:18,177 INFO L93 Difference]: Finished difference Result 2114 states and 5182 transitions. [2022-01-18 09:33:18,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 09:33:18,178 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 09:33:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:33:18,180 INFO L225 Difference]: With dead ends: 2114 [2022-01-18 09:33:18,180 INFO L226 Difference]: Without dead ends: 1983 [2022-01-18 09:33:18,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=516, Invalid=2346, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 09:33:18,181 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 912 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 09:33:18,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [912 Valid, 2230 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 09:33:18,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-01-18 09:33:18,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1971. [2022-01-18 09:33:18,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1970 states have (on average 2.4893401015228425) internal successors, (4904), 1970 states have internal predecessors, (4904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:18,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 4904 transitions. [2022-01-18 09:33:18,199 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 4904 transitions. Word has length 137 [2022-01-18 09:33:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:33:18,199 INFO L470 AbstractCegarLoop]: Abstraction has 1971 states and 4904 transitions. [2022-01-18 09:33:18,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.724137931034483) internal successors, (137), 29 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 09:33:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 4904 transitions. [2022-01-18 09:33:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 09:33:18,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:33:18,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:33:18,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 09:33:18,201 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-01-18 09:33:18,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:33:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash -687142619, now seen corresponding path program 214 times [2022-01-18 09:33:18,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:33:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649158329] [2022-01-18 09:33:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:33:18,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:33:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-01-18 09:33:18,502 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 09:33:18,504 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-01-18 09:33:18,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 09:33:18,505 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 8 remaining) [2022-01-18 09:33:18,506 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 8 remaining) [2022-01-18 09:33:18,508 INFO L732 BasicCegarLoop]: Path program histogram: [214, 39, 1, 1, 1, 1, 1] [2022-01-18 09:33:18,509 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 09:33:18,509 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:33:18,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:33:18 BasicIcfg [2022-01-18 09:33:18,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:33:18,511 INFO L158 Benchmark]: Toolchain (without parser) took 716479.13ms. Allocated memory was 358.6MB in the beginning and 5.3GB in the end (delta: 5.0GB). Free memory was 307.7MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 711.3MB. Max. memory is 16.0GB. [2022-01-18 09:33:18,511 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 328.1MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:33:18,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.80ms. Allocated memory is still 358.6MB. Free memory was 307.6MB in the beginning and 286.7MB in the end (delta: 20.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 09:33:18,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.50ms. Allocated memory is still 358.6MB. Free memory was 286.7MB in the beginning and 283.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 09:33:18,511 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 358.6MB. Free memory was 283.6MB in the beginning and 280.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:33:18,511 INFO L158 Benchmark]: RCFGBuilder took 447.79ms. Allocated memory is still 358.6MB. Free memory was 280.4MB in the beginning and 259.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2022-01-18 09:33:18,512 INFO L158 Benchmark]: TraceAbstraction took 715404.29ms. Allocated memory was 358.6MB in the beginning and 5.3GB in the end (delta: 5.0GB). Free memory was 259.4MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 665.4MB. Max. memory is 16.0GB. [2022-01-18 09:33:18,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 328.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 537.80ms. Allocated memory is still 358.6MB. Free memory was 307.6MB in the beginning and 286.7MB in the end (delta: 20.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.50ms. Allocated memory is still 358.6MB. Free memory was 286.7MB in the beginning and 283.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 358.6MB. Free memory was 283.6MB in the beginning and 280.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 447.79ms. Allocated memory is still 358.6MB. Free memory was 280.4MB in the beginning and 259.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 715404.29ms. Allocated memory was 358.6MB in the beginning and 5.3GB in the end (delta: 5.0GB). Free memory was 259.4MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 665.4MB. 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 analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - 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 analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - 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 analyzing trace of length 138 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 202 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 715.3s, OverallIterations: 258, TraceHistogramMax: 1, PathProgramHistogramMax: 214, EmptinessCheckTime: 0.8s, AutomataDifference: 516.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270805 SdHoareTripleChecker+Valid, 144.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270805 mSDsluCounter, 613528 SdHoareTripleChecker+Invalid, 122.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 584705 mSDsCounter, 24589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 319094 IncrementalHoareTripleChecker+Invalid, 343683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24589 mSolverCounterUnsat, 47440 mSDtfsCounter, 319094 mSolverCounterSat, 1.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14536 GetRequests, 1205 SyntacticMatches, 232 SemanticMatches, 13099 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137486 ImplicationChecksByTransitivity, 452.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10010occurred in iteration=4, InterpolantAutomatonStates: 7993, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.2s AutomataMinimizationTime, 257 MinimizatonAttempts, 103469 StatesRemovedByMinimization, 252 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 180.5s InterpolantComputationTime, 34566 NumberOfCodeBlocks, 34566 NumberOfCodeBlocksAsserted, 257 NumberOfCheckSat, 34309 ConstructedInterpolants, 0 QuantifiedInterpolants, 755306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 257 InterpolantComputations, 257 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